Catalogue has more than 3500 stock gear products
More than 3500 stock gear products are detailed in the new KHK catalogue, several of which are new to this 3008 publication. It features sections on spur, helical, mitre, bevel, screw, worm and internal gears as well as CP racks and pinions. Newcomers include Fairloc hub acetal spur gears, sintered metal spur gears, tapered pinions and racks, high ratio hypoid gears and spiral bevel gearboxes for both right-angle and inline drive applications.
Civil engineer wins marine gearbox
Simon Alsop of York was the winner of a brand new, two-speed PRM StepDrive gearbox in a free-to-enter competition organised by Newage Transmissions earlier in the year. Alsop had his name drawn first from more than 200 entries to the StepDrive promotion, which was run by Newage to coincide with its participation at the London International Boat Show in January. Alsop, a 26-year-old civil engineer, intends to install his prise - along with another StepDrive unit - to his twin engined Fairline Targa 29 within the next few weeks.
'StepDrives have been designed specifically for use with the Volvo diesel engines in my boat, so I am particularly pleased to have won this competition', says Alsop.
'A friend of mine has another Fairline Targa, which is powered by twin V6 petrol engines'.
'This currently outperforms my boat by quite a margin, so I'm looking forward to being able to match his performance much more closely once my StepDrives are fitted'.
The novel two-speed automatic gearboxes significantly improve boat acceleration by providing a reduction ratio of around 25% in addition to their direct drive top gear.
They are installed entirely within the centre section of Duoprop units and are ideal for use with turbocharged engines such as Volvo Penta AD31 and 41 series; as well as supercharged units up to the KAD44.
'From the computer simulations we've run, we expect Simon's Fairline to show at least a 30% improvement in acceleration, enabling it to get onto the plane far quicker than at present', says Newage Marine Sales Manager Jamie Pratt.
'Simon's boat is berthed at Naburn Marina in York, and much of his cruising is done on inland waterways'.
'As a result, Stepdrive's other advantages, such as better low speed manoeuvrability, reduced emissions and noise, will also be extremely beneficial to him', he adds.
'I was seriously considering buying a pair of StepDrives for my boat anyway', continues Alsop: 'Their whole concept is very impressive'.
'What's more, Newage has ensured that they are extremely well designed - reflecting the company's pedigree of producing rugged and dependable gearboxes for boats with engines rated at up to 620hp'.
'StepDrives have been designed specifically for use with the Volvo diesel engines in my boat, so I am particularly pleased to have won this competition', says Alsop.
'A friend of mine has another Fairline Targa, which is powered by twin V6 petrol engines'.
'This currently outperforms my boat by quite a margin, so I'm looking forward to being able to match his performance much more closely once my StepDrives are fitted'.
The novel two-speed automatic gearboxes significantly improve boat acceleration by providing a reduction ratio of around 25% in addition to their direct drive top gear.
They are installed entirely within the centre section of Duoprop units and are ideal for use with turbocharged engines such as Volvo Penta AD31 and 41 series; as well as supercharged units up to the KAD44.
'From the computer simulations we've run, we expect Simon's Fairline to show at least a 30% improvement in acceleration, enabling it to get onto the plane far quicker than at present', says Newage Marine Sales Manager Jamie Pratt.
'Simon's boat is berthed at Naburn Marina in York, and much of his cruising is done on inland waterways'.
'As a result, Stepdrive's other advantages, such as better low speed manoeuvrability, reduced emissions and noise, will also be extremely beneficial to him', he adds.
'I was seriously considering buying a pair of StepDrives for my boat anyway', continues Alsop: 'Their whole concept is very impressive'.
'What's more, Newage has ensured that they are extremely well designed - reflecting the company's pedigree of producing rugged and dependable gearboxes for boats with engines rated at up to 620hp'.
Extra-large gearbox handles heavy-duty servos
A new, extra-large servo-gearbox for heavy-duty applications has been launched in the UK by Motor Technology of Stockport. The new Dynabox XL, from Girard Transmissions, delivers up to 8000Nm of torque with backlash as low as 0.5arc-min and with ratios of up to 90:1. It is the newest addition to the existing range of Dynabox servo gearboxes which are all maintenance free with a right-angled, space-saving configuration.
Like the other gearboxes in the range, the Dynabox XL has two levels of precision to suit different applications.
The first is "medium precision", where backlash is fixed at 5arc-min; the second is "expert precision", where the backlash is adjustable to less than 0.5arc-min.
The new gearbox can accommodate input speeds from 4000rev/min (continuous) to 6000rev/min (peak), and can handle axial and radial loading of over 70,000N.
It is available in three frame sizes (125, 160 and 200mm) and is supplied with a choice of either a hollow or solid input shaft.
Like the other gearboxes in the range, the Dynabox XL has two levels of precision to suit different applications.
The first is "medium precision", where backlash is fixed at 5arc-min; the second is "expert precision", where the backlash is adjustable to less than 0.5arc-min.
The new gearbox can accommodate input speeds from 4000rev/min (continuous) to 6000rev/min (peak), and can handle axial and radial loading of over 70,000N.
It is available in three frame sizes (125, 160 and 200mm) and is supplied with a choice of either a hollow or solid input shaft.
Novel high-tech design for planetary gear
The new PH series satisfies market requirements for low-backlash planetary gears with higher torsional stiffness and stability together with a longer operational life for the output shaft bearings. The internal workings of this compact design draw on the proven technology of helical cut gears in existing planetary gearboxes. The output shaft is designed as a flange according to ISO9409.
As a result it is possible to directly bolt on pinions, gearbelt pulleys, transmission shafts, rotary actuators, or rotary tables.
Expensive shaft hub connections such as shrink discs are no longer necessary.
The gearbox series consists of six sizes with torques from 100 to 6000Nm.
Exact gear ratios can be selected in the range of 5 to 100.
The standard model already has a backlash of 3arc-min, and can be easily reduced to 1arc-min.
These characteristics of the new PH planetary gear series are especially suited to drive solutions demanding the highest standards for smooth running, precision and reliability
As a result it is possible to directly bolt on pinions, gearbelt pulleys, transmission shafts, rotary actuators, or rotary tables.
Expensive shaft hub connections such as shrink discs are no longer necessary.
The gearbox series consists of six sizes with torques from 100 to 6000Nm.
Exact gear ratios can be selected in the range of 5 to 100.
The standard model already has a backlash of 3arc-min, and can be easily reduced to 1arc-min.
These characteristics of the new PH planetary gear series are especially suited to drive solutions demanding the highest standards for smooth running, precision and reliability
Size 23 in-line planetary gearbox launched
API Portescap an API Motion company are pleased to announce the IP57B which is a second generation product offering Integer ratios, low backlash, the ratio of 10:1 in a single stage and low cost. These improved gearboxes of 40Nm peak torque give stock ratios from 5 to 100:1, plus five other standard ratios and 34 optional ratios. This is all contained within 57mm square x 54 to 79mm long depending on the ratio.
The gearboxes come with adapters and an 'Easyfit' clamp on pinion for off the shelf flexibility or direct fit for a cost effective solution in OEM volumes.
The gearbox can be fitted to any type of motor, but its prime use with a brushed and brushless DC and Stepper motor for the Factory Automation, Medical, Process Control, Scientific Instruments, Security and Access, and Semi-Conductor manufacturing machines.
The gearboxes come with adapters and an 'Easyfit' clamp on pinion for off the shelf flexibility or direct fit for a cost effective solution in OEM volumes.
The gearbox can be fitted to any type of motor, but its prime use with a brushed and brushless DC and Stepper motor for the Factory Automation, Medical, Process Control, Scientific Instruments, Security and Access, and Semi-Conductor manufacturing machines.
Rigid axle units aimed at 3 and 5 tonne vehicles
A re-developed range of heavy duty rigid axle units for off-highway and construction site vehicle applications has been announced by Coventry-based mechanical driveline equipment specialist, Newage Transmissions Ltd. The first two models in the series, the 215 and 415, are nominally designed for 3 and 5 tonne vehicle types. Each unit features double reduction gearing, with a 14.8:1 drive ratio as standard.
In addition, all axles in the new range will be available with integral transfer gearboxes for hydrostatic drives - providing overall reduction ratios of: 22.64, 26.10 and 31.52:1.
According to Newage's Technical Director, Clive Rayner: "These two new units are the forerunners of our next generation of versatile, high efficiency driveline equipment.
They are designed on a modular basis to ensure maximum commonality of parts.
This, in turn, means reduced development and manufacturing costs, as well as even better availability of units and spares."
"We believe that by extending the new range to suit vehicles up to 10 tonnes, we shall have products ideally suited to a much wider range of construction site and off-highway applications," he added.
Both new models incorporate integrated oil-immersed disc brakes and transmit drive to the wheels via inboard planetary reduction units and fully floating half shafts.
Offered with three wheel track widths, 215 and 415 series axles are rated at maximum loads of 3200kg and 5200kg and provide nominal output torques at their two wheels of 6,460Nm and 13,222Nm respectively, based on the standard reduction ratio of 14.8:1.
Both new units are available with an optional handbrake and can be supplied with a comprehensive range of input flange and wheel mounting configurations.
With a precision engineering pedigree spanning more than 70 years, Coventry-based Newage Transmissions Ltd is one of the UK's leading designers and manufacturers of high efficiency mechanical drive-line equipment.
The company's products - which are backed by certification to BSI standards - encompass heavy duty gearboxes, axles and transfer boxes for off-road dumper vehicles, as well as its world-renowned PRM marine gearbox range.
Newage also supplies finished products for a wide variety of new generation, special purpose vehicles in addition to sub-contract services for leading manufacturing organisations, including AGCO Massey Ferguson, Case and Lansing Linde.
In addition, all axles in the new range will be available with integral transfer gearboxes for hydrostatic drives - providing overall reduction ratios of: 22.64, 26.10 and 31.52:1.
According to Newage's Technical Director, Clive Rayner: "These two new units are the forerunners of our next generation of versatile, high efficiency driveline equipment.
They are designed on a modular basis to ensure maximum commonality of parts.
This, in turn, means reduced development and manufacturing costs, as well as even better availability of units and spares."
"We believe that by extending the new range to suit vehicles up to 10 tonnes, we shall have products ideally suited to a much wider range of construction site and off-highway applications," he added.
Both new models incorporate integrated oil-immersed disc brakes and transmit drive to the wheels via inboard planetary reduction units and fully floating half shafts.
Offered with three wheel track widths, 215 and 415 series axles are rated at maximum loads of 3200kg and 5200kg and provide nominal output torques at their two wheels of 6,460Nm and 13,222Nm respectively, based on the standard reduction ratio of 14.8:1.
Both new units are available with an optional handbrake and can be supplied with a comprehensive range of input flange and wheel mounting configurations.
With a precision engineering pedigree spanning more than 70 years, Coventry-based Newage Transmissions Ltd is one of the UK's leading designers and manufacturers of high efficiency mechanical drive-line equipment.
The company's products - which are backed by certification to BSI standards - encompass heavy duty gearboxes, axles and transfer boxes for off-road dumper vehicles, as well as its world-renowned PRM marine gearbox range.
Newage also supplies finished products for a wide variety of new generation, special purpose vehicles in addition to sub-contract services for leading manufacturing organisations, including AGCO Massey Ferguson, Case and Lansing Linde.
Overload clutch gets its own website
A new website aims to help design engineers and industrial distributors select the Centric Clutch overload clutch that is best for a given application. Commonly used in applications such as paper converting, packaging, wastewater treatment, braking and material handling, these products offer valuable machine design benefits. The new www.CentricClutch.com features downloadable product guides and application information for Centric Clutch mechanical and pneumatic centrifugal overload clutch products.
Technical data and product specifications for a variety of models can be accessed easily with the click of a mouse.
And a special section offers important considerations and helpful guidelines for selecting a Centric Clutch.
Overload clutches provide design advantages such as machine protection and reduced repair time during jamming load conditions.
Centric clutches offer an accurate method of resetting the torque without operator intervention.
A single position clutch will reengage in the exact rotational position each time - often necessary for system timing in bottling, packaging, paper converting and other similar applications.
Overload clutches provide consistent torque levels after many overloads.
At very low speeds, systems can develop a large amount of unnecessary torque that can damage drive system components (shafts, gearboxes, chains, couplings, etc.) in the advent of a jam.
A torque limiter will restrict the torque to the set level and extend system component life.
Technical data and product specifications for a variety of models can be accessed easily with the click of a mouse.
And a special section offers important considerations and helpful guidelines for selecting a Centric Clutch.
Overload clutches provide design advantages such as machine protection and reduced repair time during jamming load conditions.
Centric clutches offer an accurate method of resetting the torque without operator intervention.
A single position clutch will reengage in the exact rotational position each time - often necessary for system timing in bottling, packaging, paper converting and other similar applications.
Overload clutches provide consistent torque levels after many overloads.
At very low speeds, systems can develop a large amount of unnecessary torque that can damage drive system components (shafts, gearboxes, chains, couplings, etc.) in the advent of a jam.
A torque limiter will restrict the torque to the set level and extend system component life.
Marine propulsion control unit set for show debut
The PRM Marine Propulsion Control (MPC) unit, an all-new system providing full electronic control over engine throttle and gear engagement, will be launched by Newage Transmissions as part of the company's presentation on stand 1.310 at the METS International Marine Equipment Trade Show (taking place in Amsterdam between 15th and 17th November 2005). Providing soft gear engagement - for improved comfort, increased vessel control and reduced component wear - the MPC system also features a trolling capability (variable propeller speed at constant engine revs) and the automatic adjustment of engine power to match the demands of engine-driven ancillaries, such as power take off (PTO) units. Designed specifically for PRM series marine transmissions, the new system is suitable for use with both mechanical and electronically controlled engines.
The unit's fully interlocked, closed loop control provides stable gearbox output speeds under all engine load conditions.
In addition, it allows the sizing of hydraulic pumps and accessories to be optimised enabling the use of more powerful ancillary equipment in many applications.
Further features of the new system include programmable software to enable the system to be tailored to individual application requirements, and the availability of single, twin or fly-bridge controls, whose operation is synchronised through the unit's electronic control system.
For added safety, the new MPC unit also offers a full manual override in the event of an onboard electrical failure.
Other high efficiency PRM marine transmissions equipment to be displayed at METS will include lightweight, all mechanical units designed for the rapidly-expanding pleasure craft and light commercial market; heavy duty PRM 750 workboat transmissions; and the company's recently introduced top-of-the range PRM 1750 gearboxes for use with engines rated at up to 457kW.
With a maximum torque capacity of 1750Nm, this heavy duty unit is available in both shallow or deep gearcase configurations, with a range of standard ratios from 1.22:1 to 4.90:1.
Like other PRM gearboxes, the latest model features a dual countershaft design that enables full input power to be transmitted in both ahead or astern.
As a result, units are equally suitable for left or right hand propeller rotations - as well as multiple engine installations.
They also carry Lloyd's approved commercial ratings and are backed by a full two year warranty and the company's worldwide dealer and customer support network.
The unit's fully interlocked, closed loop control provides stable gearbox output speeds under all engine load conditions.
In addition, it allows the sizing of hydraulic pumps and accessories to be optimised enabling the use of more powerful ancillary equipment in many applications.
Further features of the new system include programmable software to enable the system to be tailored to individual application requirements, and the availability of single, twin or fly-bridge controls, whose operation is synchronised through the unit's electronic control system.
For added safety, the new MPC unit also offers a full manual override in the event of an onboard electrical failure.
Other high efficiency PRM marine transmissions equipment to be displayed at METS will include lightweight, all mechanical units designed for the rapidly-expanding pleasure craft and light commercial market; heavy duty PRM 750 workboat transmissions; and the company's recently introduced top-of-the range PRM 1750 gearboxes for use with engines rated at up to 457kW.
With a maximum torque capacity of 1750Nm, this heavy duty unit is available in both shallow or deep gearcase configurations, with a range of standard ratios from 1.22:1 to 4.90:1.
Like other PRM gearboxes, the latest model features a dual countershaft design that enables full input power to be transmitted in both ahead or astern.
As a result, units are equally suitable for left or right hand propeller rotations - as well as multiple engine installations.
They also carry Lloyd's approved commercial ratings and are backed by a full two year warranty and the company's worldwide dealer and customer support network.
Brushless motors with integrated speed controller
Parvalux introduces a new range of DC brushless motors with optional integrated drive electronics. These next generation motor solutions are designed to meet today's needs for cost effective, compact, versatile and maintenance free motors. The Parvalux 'ParvaDrive' range can be supplied as an integrated motor and drive package, or as a motor only with the option of a separate controller.
Using modern materials and the latest design and manufacturing techniques, ParvaDrive motors offer a significant price advantage over similar products from other manufacturers.
They provide a highly reliable and low cost motor solution suitable for many OEM applications.
The range includes motor diameters of 42mm, 60mm and 86mm with up to four different stack lengths available in each frame size.
They have a torque range of 0.1Nm up to 2.1Nm continuous (20W to 800W) from a single input voltage of 12V to 48V (other voltages available on request).
Speed control is by means of an analogue input reference from a controller or PLC (Programmable Logic Controller), or alternatively by means of a speed control potentiometer.
Rated to IP55 (splash proof) and designed to meet European and International specifications, the motors feature rare earth magnets, and UL specified components.
The optional integrated two quadrant controller housed in the rear of the motor allows speed control in either direction and the use of SMT (Surface Mount Technology) components provides a reliable and compact package that is housed inside the motor.
ParvaDrive units can also be integrated with the extensive range of Parvalux gearboxes which include worm and wheel, planetary, spur and multi-spur to provide a huge range of torques and output speeds to suit every application.
ParvaDrive motors are available from stock in a range of voltages and torque ratings and are part of a much wider range of AC and DC motors and gearboxes.
Parvalux specialise in the design and supply of individual motor and gearbox solutions up to 650W.
Evaluation units can be quickly provided for new applications and all orders are turned around with the minimum of delay. Request a free brochure from Parvalux Electric Motors....
Using modern materials and the latest design and manufacturing techniques, ParvaDrive motors offer a significant price advantage over similar products from other manufacturers.
They provide a highly reliable and low cost motor solution suitable for many OEM applications.
The range includes motor diameters of 42mm, 60mm and 86mm with up to four different stack lengths available in each frame size.
They have a torque range of 0.1Nm up to 2.1Nm continuous (20W to 800W) from a single input voltage of 12V to 48V (other voltages available on request).
Speed control is by means of an analogue input reference from a controller or PLC (Programmable Logic Controller), or alternatively by means of a speed control potentiometer.
Rated to IP55 (splash proof) and designed to meet European and International specifications, the motors feature rare earth magnets, and UL specified components.
The optional integrated two quadrant controller housed in the rear of the motor allows speed control in either direction and the use of SMT (Surface Mount Technology) components provides a reliable and compact package that is housed inside the motor.
ParvaDrive units can also be integrated with the extensive range of Parvalux gearboxes which include worm and wheel, planetary, spur and multi-spur to provide a huge range of torques and output speeds to suit every application.
ParvaDrive motors are available from stock in a range of voltages and torque ratings and are part of a much wider range of AC and DC motors and gearboxes.
Parvalux specialise in the design and supply of individual motor and gearbox solutions up to 650W.
Evaluation units can be quickly provided for new applications and all orders are turned around with the minimum of delay. Request a free brochure from Parvalux Electric Motors....
Gearbox drops in to upgrade test rig
ZF Industrial has supplied a custom Graessner gearbox for testing apparatus used to simulate airflow through new engine components to the Rolls Royce sponsored Aeronautical Research Unit at Loughborough University. In order to drive the test rig compressor system and provide the correct results, the replacement gearbox needed to produce output speeds of 5000rev/min. As the original gearbox was no longer manufactured, ZF supplied a PowerGear unit with a custom lubrication system as a drop-in replacement, which offered high performance operation and extended wear life.
In continued efforts to reduce emissions and fuel consumption from modern aeroplanes, Rolls Royce Aerospace sponsors the Aeronautical Research Unit at Loughborough University.
To improve the performance of the combustor units in gas turbine engines, Bill Rasmussen and his team operate a test rig which simulates airflow over and through new component designs.
By artificially recreating engine conditions, cooling, quality of airflow, the efficiency of air/fuel mixing can be monitored and the results used to develop higher performance engines.
The test rig itself consists of compressor disk assembly driven by 81kW motor and 4:1 ratio gearbox operating through 90 degrees.
To test engine hardware such as fuel injectors and diffusers, the rig requires input speeds of 5000rev/min to the compressor system in order to create an accurate simulation of airflow through a jet engine.
'We were previously relying on a bevel gearbox from another manufacturer for the application, which had begun to run hot due to oil starvation', explains Rasmussen.
'When we made initial enquires, we were informed that the unit had been discontinued, we then had difficulty finding a suitable replacement until we contacted ZF, whose range of gearboxes promised the high levels performance required as well as direct compatibility'.
David Morgan, the ZF Sales Engineer in charge of the project, recommended a P240H Graessner PowerGear unit fitted with a bespoke oil feed system as the optimum solution.
'The Graessner unit acted as a drop-in replacement and provided the high speeds and levels of accuracy required to drive the compressor blades and produce the precise airflow needed for accurate results'.
'The forced through oil lubrication system keeps the gearbox cool despite the high output speeds while contributing to a longer wear life'.
'Originally designed for compact machine tool applications, the PowerGear unit occupied minimal space in the small cellar room where the test rig drive assembly is situated, allowing for simple fitting and easier maintenance'.
'The housing and flanges of the PowerGear units are made of spheroidal graphite iron for maximum rigidity and the use of high quality taper roller bearings allows a high axial and radial load capacity, making them ideal for the test rig applications'.
Options available include two-, three- and four-way shaft configurations and gear ratios ranging from 1:1 to 5:1.
With Gleason bevel gearing providing high levels of efficiency (98%), and a parameter optimised gear tooth contact pattern that promotes uniform load distribution, the units are able to offer high levels of torque (up to 7800Nm) compared with their diminutive size. Request a free brochure from ZF Great Britain....
In continued efforts to reduce emissions and fuel consumption from modern aeroplanes, Rolls Royce Aerospace sponsors the Aeronautical Research Unit at Loughborough University.
To improve the performance of the combustor units in gas turbine engines, Bill Rasmussen and his team operate a test rig which simulates airflow over and through new component designs.
By artificially recreating engine conditions, cooling, quality of airflow, the efficiency of air/fuel mixing can be monitored and the results used to develop higher performance engines.
The test rig itself consists of compressor disk assembly driven by 81kW motor and 4:1 ratio gearbox operating through 90 degrees.
To test engine hardware such as fuel injectors and diffusers, the rig requires input speeds of 5000rev/min to the compressor system in order to create an accurate simulation of airflow through a jet engine.
'We were previously relying on a bevel gearbox from another manufacturer for the application, which had begun to run hot due to oil starvation', explains Rasmussen.
'When we made initial enquires, we were informed that the unit had been discontinued, we then had difficulty finding a suitable replacement until we contacted ZF, whose range of gearboxes promised the high levels performance required as well as direct compatibility'.
David Morgan, the ZF Sales Engineer in charge of the project, recommended a P240H Graessner PowerGear unit fitted with a bespoke oil feed system as the optimum solution.
'The Graessner unit acted as a drop-in replacement and provided the high speeds and levels of accuracy required to drive the compressor blades and produce the precise airflow needed for accurate results'.
'The forced through oil lubrication system keeps the gearbox cool despite the high output speeds while contributing to a longer wear life'.
'Originally designed for compact machine tool applications, the PowerGear unit occupied minimal space in the small cellar room where the test rig drive assembly is situated, allowing for simple fitting and easier maintenance'.
'The housing and flanges of the PowerGear units are made of spheroidal graphite iron for maximum rigidity and the use of high quality taper roller bearings allows a high axial and radial load capacity, making them ideal for the test rig applications'.
Options available include two-, three- and four-way shaft configurations and gear ratios ranging from 1:1 to 5:1.
With Gleason bevel gearing providing high levels of efficiency (98%), and a parameter optimised gear tooth contact pattern that promotes uniform load distribution, the units are able to offer high levels of torque (up to 7800Nm) compared with their diminutive size. Request a free brochure from ZF Great Britain....
Transmission company on show in Amsterdam
Newage Transmissions is aiming to build on recent export successes through its participation at Europe's premier marine equipment exhibition, METS 2001, which takes place in Amsterdam between 13th-15th November. The company's presentation on Stand 10.10522 will feature examples from its full range of high efficiency PRM series marine transmissions. Models on show will include PRM 80, 120 and 150 units, designed for the rapidly-expanding pleasure craft and light commercial market; heavy duty PRM 750 workboat transmissions; and the company's top-of-the range PRM 1500 gearboxes for use with engines rated at up to 500hp.
In addition, Newage will be highlighting its series of ancillary marine equipment, including trolling valves and power take-off units.
"PRM units are already the gearboxes of choice for the overwhelming majority of Britain's inland waterway craft, with more than 80 per cent market share," says Marine Sales Manager, Ian Oliver.
"Their reputation for durability, reliability and in-service performance has seen them specified for an increasingly diverse range of applications over recent months, from pleasure craft to fishing vessels and passenger ferries.
"As one of the most important shows on our exhibition calendar, METS 2001 provides us with the ideal opportunity to further develop our overseas marine equipment sales."
In addition, Newage will be highlighting its series of ancillary marine equipment, including trolling valves and power take-off units.
"PRM units are already the gearboxes of choice for the overwhelming majority of Britain's inland waterway craft, with more than 80 per cent market share," says Marine Sales Manager, Ian Oliver.
"Their reputation for durability, reliability and in-service performance has seen them specified for an increasingly diverse range of applications over recent months, from pleasure craft to fishing vessels and passenger ferries.
"As one of the most important shows on our exhibition calendar, METS 2001 provides us with the ideal opportunity to further develop our overseas marine equipment sales."
Novel gearbox installed in Brixham boat
Newage Transmissions' first production StepDrive unit - an automatic two-speed marine gearbox that dramatically improves the performance of boats equipped with Volvo Penta diesel engines - has been installed in a 25ft Lema Clon motor boat based at Brixham. The installation marks the new gearbox's successful completion of exhaustive rig testing and sea trials designed to simulate many years of normal pleasure craft operation. StepDrive units are self-contained gearboxes that can be retrofitted to Volvo Duoprop 290 drive legs.
They are installed entirely within the centre section of the Duoprop unit and are ideal for use with turbocharged engines such as Volvo Penta AD31 and 41 series; as well as supercharged units up to the KAD44.
In operation, StepDrive gearboxes automatically change from low to high ratio at a predetermined engine speed.
This is optimised during installation to the individual boat and engine combination.
When the boat decelerates again, low gear is engaged as the engine speed falls below 1500rev/min.
Installed on the Lema Clon with a 150hp AD31 engine and DP-E driveleg, the Newage StepDrive unit has fully justified its makers claims that it typically increases boat performance by 25%.
"In timed test runs, some vessels have achieved massive 40% improvements in 0-20 knot times", reports Newage's Marine Sales Manager, Jamie Pratt.
"However, by providing an additional reduction ratio of around 25%, StepDrive units not only boost overall performance, but provide the benefits of reduced creep speed, emissions and noise when manoeuvring in busy marinas or restricted waterways".
"In some cases, they will also enable the original propellers to be replaced; so that the vessel's improved handling and fuel economy characteristics can be combined with an even higher top speed".
StepDrive installations will normally be completed in a day, with further in-water commissioning required to set the optimum gear change point.
All units carry a two-year warranty and are available nation-wide through the following six regional installations centres: DB Marine of Cookham, BA Peters in Chichester, Maldon-based Volspec, Marine Engineering Looe of East Looe, Southampton-based RK Marine, and Abersoch Land and Sea in Pwllheli.
They are installed entirely within the centre section of the Duoprop unit and are ideal for use with turbocharged engines such as Volvo Penta AD31 and 41 series; as well as supercharged units up to the KAD44.
In operation, StepDrive gearboxes automatically change from low to high ratio at a predetermined engine speed.
This is optimised during installation to the individual boat and engine combination.
When the boat decelerates again, low gear is engaged as the engine speed falls below 1500rev/min.
Installed on the Lema Clon with a 150hp AD31 engine and DP-E driveleg, the Newage StepDrive unit has fully justified its makers claims that it typically increases boat performance by 25%.
"In timed test runs, some vessels have achieved massive 40% improvements in 0-20 knot times", reports Newage's Marine Sales Manager, Jamie Pratt.
"However, by providing an additional reduction ratio of around 25%, StepDrive units not only boost overall performance, but provide the benefits of reduced creep speed, emissions and noise when manoeuvring in busy marinas or restricted waterways".
"In some cases, they will also enable the original propellers to be replaced; so that the vessel's improved handling and fuel economy characteristics can be combined with an even higher top speed".
StepDrive installations will normally be completed in a day, with further in-water commissioning required to set the optimum gear change point.
All units carry a two-year warranty and are available nation-wide through the following six regional installations centres: DB Marine of Cookham, BA Peters in Chichester, Maldon-based Volspec, Marine Engineering Looe of East Looe, Southampton-based RK Marine, and Abersoch Land and Sea in Pwllheli.
PRM marine gearbox range on show in Southampton
Four models from Newage Transmissions well-known PRM marine gearbox range will form the centrepiece of the company's presentation on Stand 84 at the Seawork Marine Equipment Show in Southampton between 19-21st June 2001. Developed specifically to meet the needs of commercial fishing vessel and work boat users, the PRM 500, 750, 1000 and 1500 models on show provide the ideal choice for a wide variety of applications with engines rated at up to 500 hp. All PRM gearboxes feature a dual countershaft design that enables full input power to be transmitted in both ahead or astern.
As a result, units are equally suitable for left or right hand propeller rotations - as well as multiple engine installations.
They also carry Lloyd's approved commercial ratings and are backed by a full two year warranty and the company's world-wide dealer and customer support network.
In addition, PRM marine gearboxes are offered with a comprehensive range of ancillary equipment, including trolling valves and clutched or direct-drive power take-offs.
"Our transmissions' in-service reliability, durability and low maintenance have helped to establish them as the units of choice for the majority of Britain's leisure boat owners," reports Newage's Marine Sales Manager, Ian Oliver.
"They are currently specified on more than 80 per cent of all new inland waterway craft."
As a result, units are equally suitable for left or right hand propeller rotations - as well as multiple engine installations.
They also carry Lloyd's approved commercial ratings and are backed by a full two year warranty and the company's world-wide dealer and customer support network.
In addition, PRM marine gearboxes are offered with a comprehensive range of ancillary equipment, including trolling valves and clutched or direct-drive power take-offs.
"Our transmissions' in-service reliability, durability and low maintenance have helped to establish them as the units of choice for the majority of Britain's leisure boat owners," reports Newage's Marine Sales Manager, Ian Oliver.
"They are currently specified on more than 80 per cent of all new inland waterway craft."
Miniature motors come with big specifications
A continuous power rating of no less than 70W is offered by 30mm diameter ironless-rotor DC motors in the new 30GT range from miniature motor and gearbox expert Portescap. These tiny motors, which are just 62mm long, combine their high power/size ratio with extended operating life, thanks to the use of high-quality graphite-copper brushgear and precision ball bearings. Portescap 30GT motors are currently offered, as standard, for use on 24 or 48V supplies.
The typical maximum operating speed for all models is 11,000rev/min, with 24V units capable of developing continuous torques of up to 83mNm, a figure which rises to 104mNm for 48V motors.
All 30GT motors can operate well in excess of their rated torque for short periods.
Benefits of the Portescap ironless technology used in these new motors include low friction, low starting voltage, absence of iron losses, good thermal dissipation and a linear torque-speed characteristic.
All of these factors facilitate the use of the units in high-performance drive and servo systems.
Their high efficiency means that they are also an ideal choice for applications in battery-powered equipment.
To complement its small, but powerful, 30GT ironless-rotor motors, Portescap offers an extensive range of standard and custom miniature gearboxes.
Designed for simple and speedy attachment to the motor, these gearboxes are available in both spur and planetary versions, with a wide range of reduction ratios.
• Delta Line Europe UK: contact details and other news
• Other news in Precision Motors and Gears
The typical maximum operating speed for all models is 11,000rev/min, with 24V units capable of developing continuous torques of up to 83mNm, a figure which rises to 104mNm for 48V motors.
All 30GT motors can operate well in excess of their rated torque for short periods.
Benefits of the Portescap ironless technology used in these new motors include low friction, low starting voltage, absence of iron losses, good thermal dissipation and a linear torque-speed characteristic.
All of these factors facilitate the use of the units in high-performance drive and servo systems.
Their high efficiency means that they are also an ideal choice for applications in battery-powered equipment.
To complement its small, but powerful, 30GT ironless-rotor motors, Portescap offers an extensive range of standard and custom miniature gearboxes.
Designed for simple and speedy attachment to the motor, these gearboxes are available in both spur and planetary versions, with a wide range of reduction ratios.
• Delta Line Europe UK: contact details and other news
• Other news in Precision Motors and Gears
70W continuous power from small DC motor
A continuous power rating of no less than 70 watts is offered by 30mm diameter ironless-rotor DC motors in the new 30GT range from miniature motor and gearbox supplier Portescap. These tiny motors, which are just 62mm long, combine their high power/size ratio with extended operating life, thanks to the use of high-quality graphite-copper brushgear and precision ball bearings. Portescap 30GT motors are currently offered, as standard, for use on 24V or 48V supplies.
Custom motors for other supply voltages are, however, available to order.
The typical maximum operating speed for all models is 11,000 rpm, with 24V units capable of developing continuous torques of up to 83 mNm, a figure which rises to 104 mNm for 48V motors.
All 30GT motors can operate well in excess of their rated torque for short periods.
Benefits of the Portescap ironless technology used in these new motors include low friction, low starting voltage, absence of iron losses, good thermal dissipation and a linear torque-speed characteristic.
All of these factors facilitate the use of the units in high-performance drive and servo systems.
Their high efficiency means that they are also an ideal choice for applications in battery-powered equipment.
To complement its small, but powerful, 30GT ironless-rotor motors, Portescap offers an extensive range of standard and custom miniature gearboxes.
Designed for simple and speedy attachment to the motor, these gearboxes are available in both spur and planetary versions, with a wide range of reduction ratios.
Portescap is a subsidiary of the Danaher Motion Components Group, a part of the multinational Danaher Corporation, and is a world leader in the development and manufacture of motion control products.
Custom motors for other supply voltages are, however, available to order.
The typical maximum operating speed for all models is 11,000 rpm, with 24V units capable of developing continuous torques of up to 83 mNm, a figure which rises to 104 mNm for 48V motors.
All 30GT motors can operate well in excess of their rated torque for short periods.
Benefits of the Portescap ironless technology used in these new motors include low friction, low starting voltage, absence of iron losses, good thermal dissipation and a linear torque-speed characteristic.
All of these factors facilitate the use of the units in high-performance drive and servo systems.
Their high efficiency means that they are also an ideal choice for applications in battery-powered equipment.
To complement its small, but powerful, 30GT ironless-rotor motors, Portescap offers an extensive range of standard and custom miniature gearboxes.
Designed for simple and speedy attachment to the motor, these gearboxes are available in both spur and planetary versions, with a wide range of reduction ratios.
Portescap is a subsidiary of the Danaher Motion Components Group, a part of the multinational Danaher Corporation, and is a world leader in the development and manufacture of motion control products.
Conveyor upgrade is ahead of schedule
David Brown is ahead of time with its management contract to overhaul and upgrade the massive conveying system at Australia's Yallourn power station in Victoria - in turn part of a huge scheme that involves diverting the Morwell River and upgrading and modernising Yallourn mine. With the two year contract for Yallourn Energy (now called TRUenergy Yallourn) stipulating completion of 15 conveyor drive assemblies by September 2006, the company has already completed that number as well as two gearbox spares in a clear demonstration of its asset management capabilities as well as its widely recognised technical prowess. Extra work was also required following a serious fire in December 2005 that necessitated the urgent refurbishment and relocation of a number of drive conveyors in order to keep Yallourn operating.
Concurrent with this urgent work was the refurbishment of critical drive gearboxes on a large overburden dredger which was undergoing upgrade at the same time - David Brown once again pulled out all of the stops to assist Yallourn Energy at this difficult time.
Each of the 25 year old conveyor drive assemblies comprise a 370 or 610kW electric motor, gearbox, brake and fluid coupling, to absorb shock loading of the conveyors, all mounted on a base plate.
Whereas the gearboxes, of various origins, were transported from Melbourne and overhauled at David Brown's own facilities at Bulli, New South Wales, the work on motors and couplings was subcontracted.
The smooth running of the project therefore demonstrates the project management skills and QA knowledge of David Brown's management team and workforce.
Yallourn Energy had initially approached David Brown early in 2004 when the process of site visits and tendering was initiated.
On signature of the contract in the following December the real work began which required fortnightly meetings on-site to ensure the smooth running of the project.
The principal's requirements of stringent QA documentation, refurbishment to EOM standard or better, full load testing off site plus incorporation of condition monitoring devices on all refurbished equipment were challenges met by David Brown.
David Brown has also undertaken additional refurbishment works on the Yallourn overburden dredger drives, all based on the main contract terms and conditions.
'The Yallourn contract has been a very steep learning curve for us', commented David Brown Project Manager Geoff Kinniburgh.
'We were confident that we had all of the necessary experience and expertise but quite frankly we had never handled a project of this scale and importance before'.
'In completing the project successfully and ahead of time, I believe we have built a real reputation for ourselves in the field of asset management that will stand us in good stead for the future'.
In fact, as the two-year project approaches completion, David Brown is confident that it will be able to negotiate a possible extra 6-year renewal having demonstrated a much greater degree of ownership of Yallourn problems and challenges than previous asset management companies.
Yallourn W power station, located 160km east of Melbourne, provides 24% of Victoria's power and 8% of the national requirement, and the adjacent open cut brown coal mine is the second largest in Australia with available reserves sufficient to meet the projected needs of the power station until 2032.
To allow unimpeded access to the coal field a project was begun five years ago to divert the Morwell River and was recently completed on time.
The 3.5km diversion is an impressive feat of modern engineering in itself and cost Au $122 million (over GBP 50 million).
The mine upgrade and modernisation programme was also undertaken in the five year period and involved works to fixed conveyor plant and infrastructure that totalled an additional Au $50 million (GBP 20 million).
Concurrent with this urgent work was the refurbishment of critical drive gearboxes on a large overburden dredger which was undergoing upgrade at the same time - David Brown once again pulled out all of the stops to assist Yallourn Energy at this difficult time.
Each of the 25 year old conveyor drive assemblies comprise a 370 or 610kW electric motor, gearbox, brake and fluid coupling, to absorb shock loading of the conveyors, all mounted on a base plate.
Whereas the gearboxes, of various origins, were transported from Melbourne and overhauled at David Brown's own facilities at Bulli, New South Wales, the work on motors and couplings was subcontracted.
The smooth running of the project therefore demonstrates the project management skills and QA knowledge of David Brown's management team and workforce.
Yallourn Energy had initially approached David Brown early in 2004 when the process of site visits and tendering was initiated.
On signature of the contract in the following December the real work began which required fortnightly meetings on-site to ensure the smooth running of the project.
The principal's requirements of stringent QA documentation, refurbishment to EOM standard or better, full load testing off site plus incorporation of condition monitoring devices on all refurbished equipment were challenges met by David Brown.
David Brown has also undertaken additional refurbishment works on the Yallourn overburden dredger drives, all based on the main contract terms and conditions.
'The Yallourn contract has been a very steep learning curve for us', commented David Brown Project Manager Geoff Kinniburgh.
'We were confident that we had all of the necessary experience and expertise but quite frankly we had never handled a project of this scale and importance before'.
'In completing the project successfully and ahead of time, I believe we have built a real reputation for ourselves in the field of asset management that will stand us in good stead for the future'.
In fact, as the two-year project approaches completion, David Brown is confident that it will be able to negotiate a possible extra 6-year renewal having demonstrated a much greater degree of ownership of Yallourn problems and challenges than previous asset management companies.
Yallourn W power station, located 160km east of Melbourne, provides 24% of Victoria's power and 8% of the national requirement, and the adjacent open cut brown coal mine is the second largest in Australia with available reserves sufficient to meet the projected needs of the power station until 2032.
To allow unimpeded access to the coal field a project was begun five years ago to divert the Morwell River and was recently completed on time.
The 3.5km diversion is an impressive feat of modern engineering in itself and cost Au $122 million (over GBP 50 million).
The mine upgrade and modernisation programme was also undertaken in the five year period and involved works to fixed conveyor plant and infrastructure that totalled an additional Au $50 million (GBP 20 million).
Synthetic grease for washing machine transmissions
Some washing machine manufacturers are designing new planetary gearboxes using plastic gear materials. Others maintain conventional, cut-metal, spur gear designs. However, if they rely on standard petroleum oils to lubricate those gears, they all have two things in common: leakage concerns and the added cost of seals and gaskets.
Using Nye lubricants synthetic greases can solve both problems.
Although synthetic greases may cost more than petroleum oils, it delivers large ROIs by eliminating oil seals, gaskets, silicone sealants and associated manufacturing costs - and the cost of damage control if the transmission leaks oil on a customer's brand new hardwood floor.
Nye Lubricants supplies greases for plastic gearing, cut and powered metal gears, cut metal and plastic gearing, plastic gearing and light-duty clutch mechanisms.
Newgate Simms is the exclusive UK distributor for Nye Lubricants.
Using Nye lubricants synthetic greases can solve both problems.
Although synthetic greases may cost more than petroleum oils, it delivers large ROIs by eliminating oil seals, gaskets, silicone sealants and associated manufacturing costs - and the cost of damage control if the transmission leaks oil on a customer's brand new hardwood floor.
Nye Lubricants supplies greases for plastic gearing, cut and powered metal gears, cut metal and plastic gearing, plastic gearing and light-duty clutch mechanisms.
Newgate Simms is the exclusive UK distributor for Nye Lubricants.
Brevini integrates Posiva Drives
Designers, OEMs, and plant and process engineers are set to benefit from a wider range of solutions to their power transmission problems, following the integration into the International Brevini Group of Posiva Drives. As part of this integration, Posiva will change its name and in future will trade as PIV Drives UK. The UK incorporation follows the purchase, in 2002, of Posiva's German parent company, by Brevini Ruduttori.
It brings together the activities of Brevini UK and PIV Drives UK under the control of Guiseppe Galli, General Manager of Brevini's UK operation, which is based at a new purpose built facility in Warrington.
The partnering of the two UK companies is essentially seamless for customers as PIV is remaining at its base in Scunthorpe, Lincolnshire.
"The coming together of Brevini and PIV in the UK is good news for our customers", said Guiseppe Galli.
"The complementary product ranges offered by the two companies means that we are able to offer solutions to a wider range of industrial power transmission applications.
Moreover, our newly synergised operations mean that - more than ever - we will be able to provide the latest concepts in gear technology to solve the most complex of drive problems cost effectively for our customers".
The product ranges allied by the integration of Brevini and PIV are both top of their class in terms of quality, efficiency and flexibility.
The high torque, compact size, and low weight advantages of Brevini's planetary gearboxes mean that they are increasingly the first choice in industrial and process applications, having dominated in the mobile sector for a number of years.
The versatility in design and flexibility in the number of options available mean that Brevini's planetary range is suitable for use in a wide range of industries.
These include materials handling, water treatment, quarrying, food processing, waste disposal (crushers), marine (winches), steel, mining, agriculture, machine tools and construction.
PIV's helical, bevel helical and spiral bevel gearboxes are market leaders for design, quality, power/weight ratio and price per kilowatt.
The company' s experience is second to none and the recent introduction of the modular Posired 2 range of helical and bevel helical gears has revolutionised the market, enabling gear problems to be solved "off the shelf" with considerable savings potential for the user.
It brings together the activities of Brevini UK and PIV Drives UK under the control of Guiseppe Galli, General Manager of Brevini's UK operation, which is based at a new purpose built facility in Warrington.
The partnering of the two UK companies is essentially seamless for customers as PIV is remaining at its base in Scunthorpe, Lincolnshire.
"The coming together of Brevini and PIV in the UK is good news for our customers", said Guiseppe Galli.
"The complementary product ranges offered by the two companies means that we are able to offer solutions to a wider range of industrial power transmission applications.
Moreover, our newly synergised operations mean that - more than ever - we will be able to provide the latest concepts in gear technology to solve the most complex of drive problems cost effectively for our customers".
The product ranges allied by the integration of Brevini and PIV are both top of their class in terms of quality, efficiency and flexibility.
The high torque, compact size, and low weight advantages of Brevini's planetary gearboxes mean that they are increasingly the first choice in industrial and process applications, having dominated in the mobile sector for a number of years.
The versatility in design and flexibility in the number of options available mean that Brevini's planetary range is suitable for use in a wide range of industries.
These include materials handling, water treatment, quarrying, food processing, waste disposal (crushers), marine (winches), steel, mining, agriculture, machine tools and construction.
PIV's helical, bevel helical and spiral bevel gearboxes are market leaders for design, quality, power/weight ratio and price per kilowatt.
The company' s experience is second to none and the recent introduction of the modular Posired 2 range of helical and bevel helical gears has revolutionised the market, enabling gear problems to be solved "off the shelf" with considerable savings potential for the user.
Choose the most appropriate drive for the job
Electronic servo drives are certainly in vogue. For many design engineers, they are the preferred choice for systems which synchronise and co-ordinate the movement and position of fast moving components. Clearly they have an important contribution to make but they are not necessarily the right choice for all applications.
A mechanical solution may not be as technically exciting but in many cases it can be more reliable, more accurate and far more cost efficient in the long run.
Mechanical drives are often seen as old fashioned and low tech.
In truth they are the subject of much development.
The fact is mechanical drives are increasingly getting better and those at the quality end of the scale are now able to deliver even greater accuracy and reliability.
More accurate machining of components, more durable materials, higher quality bearings, new methods of heat treatment, and heating which effectively eliminates any distortion - all these elements have contributed to the significant improvement.
The electronic drive is often sold on the basis of it being more accurate than its mechanical counterpart.
Certainly mediocre quality mechanical drives may be inferior but those at the higher end of the quality scale can far exceed the accuracy of the electronic drive.
The main benefit of a largely mechanical system - one comprising line shafts and bevel gear boxes - is that its accuracy is maintained throughout the system.
Basically, what you put in at one end, you get out the other! Within one revolution a mechanical drive will always repeat itself, it will always return to its original position.
Of course the transmission error of a geared system must be considered, but this can be measured.
It is a known quantity for which compensation can be made if necessary.
In a multi-stage process driven by electronic drives, the relationship between the position of the product and various elements of the machine is fed back to the controller by a variety of peripheral sensors.
The system is therefore far more complicated and often servo motors cannot respond fast enough to achieve the required degree of accuracy.
By its very nature, an electronic drive system will only respond to where the product was in relation to the drive, not where it is.
There are however, applications where a single electronic drive offers advantages over a single mechanical drive.
If you need fast response and where the application involves changes in motion, the electronic drive is the best choice.
It is ideal for replacing cams and for applications which require high torque for fast acceleration and braking.
However, if the whole system requires high torque, the electronic drive and motor will need to be large and may be very expensive.
In this case a motor/gearbox solution will produce high torque far more cost-effectively.
Electronic drives are also limited when it comes to providing high torque at low speed; gearbox speed reduction is the only viable solution.
Electronic drives are often chosen for machines used to produce or process a number of different products.
Stored set-up data can be quickly called-up to re-set the machine with changed parameters.
But an electronic drive does not always have to be the foregone conclusion.
Speed modulation gearboxes are increasingly being used in packaging machines and in particular cartoning machines.
These gearboxes allow adjustments to be made in machine set-up to accommodate different carton sizes at a much lower cost than having all components being driven and controlled electronically.
Notably, the speed modulation gearbox offers considerable benefit over traditional systems comprising gearboxes, line shafts and chains.
Adjusting such a mechanical system would take upwards of 45 minutes.
Systems using speed modulation gearboxes, with a manual adjustment, may take just two minutes to set up.
Although the cost of servo drives is certainly reducing, they remain expensive in relation to mechanical drives.
One of the main cost penalties is the programming back-up they require.
In fairness, the majority of good servo drive manufacturers do offer this service but help is not always readily at hand in the middle of the night shift! Also when problems occur in an electronically driven system it can be difficult to know where to start.
A largely mechanical system is much more simple and user-friendly.
A problem is easier to track down.
A mechanical solution may not be as technically exciting but in many cases it can be more reliable, more accurate and far more cost efficient in the long run.
Mechanical drives are often seen as old fashioned and low tech.
In truth they are the subject of much development.
The fact is mechanical drives are increasingly getting better and those at the quality end of the scale are now able to deliver even greater accuracy and reliability.
More accurate machining of components, more durable materials, higher quality bearings, new methods of heat treatment, and heating which effectively eliminates any distortion - all these elements have contributed to the significant improvement.
The electronic drive is often sold on the basis of it being more accurate than its mechanical counterpart.
Certainly mediocre quality mechanical drives may be inferior but those at the higher end of the quality scale can far exceed the accuracy of the electronic drive.
The main benefit of a largely mechanical system - one comprising line shafts and bevel gear boxes - is that its accuracy is maintained throughout the system.
Basically, what you put in at one end, you get out the other! Within one revolution a mechanical drive will always repeat itself, it will always return to its original position.
Of course the transmission error of a geared system must be considered, but this can be measured.
It is a known quantity for which compensation can be made if necessary.
In a multi-stage process driven by electronic drives, the relationship between the position of the product and various elements of the machine is fed back to the controller by a variety of peripheral sensors.
The system is therefore far more complicated and often servo motors cannot respond fast enough to achieve the required degree of accuracy.
By its very nature, an electronic drive system will only respond to where the product was in relation to the drive, not where it is.
There are however, applications where a single electronic drive offers advantages over a single mechanical drive.
If you need fast response and where the application involves changes in motion, the electronic drive is the best choice.
It is ideal for replacing cams and for applications which require high torque for fast acceleration and braking.
However, if the whole system requires high torque, the electronic drive and motor will need to be large and may be very expensive.
In this case a motor/gearbox solution will produce high torque far more cost-effectively.
Electronic drives are also limited when it comes to providing high torque at low speed; gearbox speed reduction is the only viable solution.
Electronic drives are often chosen for machines used to produce or process a number of different products.
Stored set-up data can be quickly called-up to re-set the machine with changed parameters.
But an electronic drive does not always have to be the foregone conclusion.
Speed modulation gearboxes are increasingly being used in packaging machines and in particular cartoning machines.
These gearboxes allow adjustments to be made in machine set-up to accommodate different carton sizes at a much lower cost than having all components being driven and controlled electronically.
Notably, the speed modulation gearbox offers considerable benefit over traditional systems comprising gearboxes, line shafts and chains.
Adjusting such a mechanical system would take upwards of 45 minutes.
Systems using speed modulation gearboxes, with a manual adjustment, may take just two minutes to set up.
Although the cost of servo drives is certainly reducing, they remain expensive in relation to mechanical drives.
One of the main cost penalties is the programming back-up they require.
In fairness, the majority of good servo drive manufacturers do offer this service but help is not always readily at hand in the middle of the night shift! Also when problems occur in an electronically driven system it can be difficult to know where to start.
A largely mechanical system is much more simple and user-friendly.
A problem is easier to track down.
Updated website for motor supplier
In addition, the complete range of Premotec gearboxes is also featured - with spur and planetary versions available.
Detailed data sheets can be easily downloaded on all the above product types including fully productionised, mature products in the range plus recently launched part numbers from the brushless and coreless motor families.
The site will be regularly updated as new products are launched.
Of particular interest to customers requiring long-life, simple operation and fully integrated electronic controls will be the recently extended BL58 motor family which now includes products from 35 to 70 watts in a variety of stack lengths.
The smaller, BL48 family now includes motors with or without electronic control of speed and tacho signal.
Versions are available in 8 and 12 watts.
The site is very easy to use with each page uploading quickly so that no time is wasted waiting for your valuable information to arrive.
As well as providing detailed data on the Premotec range of products, there is also an introduction to Premotec, it's products and capabilities.
Detailed data sheets can be easily downloaded on all the above product types including fully productionised, mature products in the range plus recently launched part numbers from the brushless and coreless motor families.
The site will be regularly updated as new products are launched.
Of particular interest to customers requiring long-life, simple operation and fully integrated electronic controls will be the recently extended BL58 motor family which now includes products from 35 to 70 watts in a variety of stack lengths.
The smaller, BL48 family now includes motors with or without electronic control of speed and tacho signal.
Versions are available in 8 and 12 watts.
The site is very easy to use with each page uploading quickly so that no time is wasted waiting for your valuable information to arrive.
As well as providing detailed data on the Premotec range of products, there is also an introduction to Premotec, it's products and capabilities.
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