Planetary gears offer consistent performance

High precision, compact HPGP planetary gears from Harmonic Drive, offer consistent, high-precision over its whole life, claims the company, even when operating at high speed or with low gear ratios.

Permanent Precision drives use a flexible hollow gear at the final stage, reducing gear backlash to less than one minute of arc without using any backlash adjustment mechanism. As a result, says the company, a machine can run for years, with the same accuracy and precision that it had on day one. The range is suitable for broadcast, machine tools, packaging machines, printing and medical equipment.

The compact cross roller bearing provides high tilt resistance and rotational characteristics at the output flange and delivers 33% more torque than the existing series. The planetary gears are available in six sizes (11 to 65), with gear ratios from 4 to 45 and can transmit repeatable peak torques between 10 and 2920Nm.

Three versions are available -with output flange, smooth output shaftor keyed output shaft.