A new line of multispeed gear transmissions from Andantex features two, three, four, six or nine speeds within one gearbox housing and from 12 to 288 speeds by coupling up to four boxes. Applications include agitators, capstan drives, vertical drilling machines and track drives.
The gearboxes feature form-ground gears that are shrunk onto the shafts, eliminating the use of keys, which eliminates fretting, the company said. The housings are manufactured from precision iron castings with a cubic configuration which allows installation in any position. When coupled in tandem, overall length is held to a minimum by a design which eliminates the need for external shaft couplings.
Available in seven sizes over the entire ratio range, the gear boxes are 96 percent efficient with ratings from 5 to 800 hp at 1500 rpm, the company said. Output shafts can be supplied to rotate in the same direction as input, or in the opposite direction. Reversing boxes can change direction either manually or electrically. Motor flanges are available for direct motor coupling.
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