Holroyd Precision launches its WG series worm gear shaft range

Holroyd Precision's WG Series worm gear grinding stations incorporate the company's Smart probe and self-correction CNC technology to support ultra-high levels of accuracy, finish and productivity. Depending on the model selected, users can grind precision worm shafts to AGMA 14/DIN 2 in sizes ranging from 3 to 500 mm diameter and thread lengths up to 1,600 mm, with a 130 mm diameter through bore work head to accommodate long shaft lengths.

Each WG machine benefits from Holroyd's CNC system – a purpose-developed controller with a graphical, menu-driven user interface. This makes it both simple and straightforward for operators to take data from gear drawings to produce profile and grinding paths and to generate standard tooth forms, or perform topological modifications to tooth profiles in a controlled a way. The WG models' high power capability stems from the use of advanced digital servo drives and high torque density synchronous servomotors. The digital drive technology offers a small, neat and reliable drive package. The use of 3D measurement and an integrated correction probe improves productivity by removing any need for off-machine inspection of ground components. It also means that parts can be precision-ground and measured, with any deviations being automatically corrected before the completion of the cycle. WG machines also benefit from the introduction of a gear manufacturing and design analysis program. Reducing the margin for error during worm gear manufacture, the program also helps ensure greater consistency and longer gear life. This is achieved by providing benefits such as the ability to grind worm gears off-load to offset distortion due to loading during use.