• Bevel Helical Gearboxes with ratios from 8/1 up to 550/1
  • A choice of mounting options
  • Standard IEC flange and shaft motor input
  • 0.09kw up to 90kw
  • Robust and durable design

Bevel Helical Gearboxes from STM UK features a very rigid monolithic structure suitable for applications with weighty loads.

Housings and flanges on this STM Bevel Helical Gearbox range are in engineering cast iron GG200 GG250 ISO 185 although size 63 and 71 of the OM – Bevel Helical feature aluminium SG-AISi UNI 1706 housings and flanges


For further strength, the input shaft is constructed from spring tempered steel 39NiCrMo3 UNI EN 10083 and steel C40 UNI 5332 is used for the output shaft on the OM – Bevel Helical Gearbox range. Gear construction is of steel 18NiCrMo5 UNI 7846 that has already been casehardened, hardened and formed to aid efficiency and minimise noise even when under pressure. For heavy duty Bevel Helical Gearboxes please click here to see the range offered by GSM Spa.


For further information, including Catalogues, Installation Manuals, Parts Lists or 2D/3D drawings please follow the link below:


Enquire Now

The latest tweet

Posted 1 week ago

We've got another big anniversary today. Our colleague Nathan has worked at STM UK for 25 years today. Nathan has… https://t.co/ApwpHmDyRL

Follow us

The latest news

Investing in our future

Posted by Andrew Ralston | Posted on 01.03.19

While being a bit of a cliché, we really believe that our colleagues are the most important part of our…

Keep Reading

Download our guide containing details and specification of our most popular products.