Lifetime precision for new planetary gears

It is this quality that gives rise to the name; Permanent Precision®. This level of accuracy is achieved by using 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 a machine can run for years, with the same accuracy and precision that it had on day one. The HPGP Permanent Precision® range is ideally suited to many industries including broadcast, machine tools, packaging machines, printing and medical equipment.

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

The Permanent Precision’s planetary gears come in three versions, with output flange, smooth output shaft or keyed output shaft.

"Our tilt-resistant output bearing means you can apply high loads without any further support, for simple, space-saving construction," explained Graham Mackrell, managing director of Harmonic Drive UK.

"When we developed the new HPGP range, we focussed our efforts on creating a simple structural design, without compromising on quality. Standard servo motors can be simply coupled to our planetary gears and together form a compact and lightweight system. The precision output bearing with high tilting rigidity ensures it iscapable of withstanding high payloads, so stable machine characteristics and short cycle times are guaranteed."