Pinions

Pinion

Prealoaded Double Pinions

The Preloaded Double Pinions, PDP, from WMH Herion is designed to provide a cost effective method of eliminating backlash between the rack and pinion in high precision linear motion applications. The PDP is made of two ground WMH pinions, each ½ the width of the rack, connected together through a patented coupling preload system that cancels the backlash between rack and pinion providing a competitive alternative to ball screw drive systems.

The preload torque of the PDP is easily adjusted and the units are equipped with an ISO 9409-1 flange for adapting to speed reducers. The PDP can be combined with precision reducers to provide system backlash < 1 arc-minute thereby eliminating the need for two electrically preloaded reducers (with 2 servo motors) in certain applications.

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Our goal is to help people in the best way possible. this is a basic principle in every case and cause for success. Our goal is to help people in the best way possible. this is a basic principle in every case and cause for success. 

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