German machine builder Ruckle has chosen Holroyd dual lead gears for its rotary table drives. Renold Gears’ Holroyd dual lead wormgear sets are suitable for such applications as they provide a kinematically correct gear, which can run in either direction of rotation and on which the backlash is infinitely adjustable from an acceptable maximum to zero. The gears are manufactured in matched pairs to specified sizes.
The gears are supplied in sizes from 125mm to 550mm gearing centres with ratios up to 180:1.