Renold Gears Profiles Holroyd at the CIMT show in Beijing, China




Renold Gears supplies precision gears for positional indexing and rotary table manufacturers and is currently exhibiting at the Chinese CIMT show in Beijing, until 11th April, with the aim of increasing its profile to machine builders in Asia.

You can visit us in Hall W3, stand E207

Renold Gears has long been known for high quality power transmission equipment, the roots of which can be traced back to the John Holroyd company which was established, and started manufacture, at the beginning of the last century.

Although the original John Holroyd company was taken over by Renold in the early sixties, the world renowned quality of the worm gears has remained and today is at the forefront of high precision machine tool worm gears.

Still manufactured at the same factory in Milnrow, north of Manchester in the UK, Renold Gears' Holroyd dual lead worm gear sets are ideally suited for use in positional machinery 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 and the mounting diameters are designed to fit to the customer's specific requirements.

Unique transmission testing of the profile of the gears ensures a constant gearing contact throughout its full rotation.  This comprises a continuous measurement of the angular position of the driven wormwheel relative to where is should be with a perfect gearset as the driving worm rotates at a uniform rate.  The test measures, and records directly, pitch and eccentricity errors, and also the profile errors of the active part of the profile.