BELTS, PULLEYS & GEARS

BELTS, PULLEYS & GEARS

Belts, Pulleys, Gears

Rotary devices can operate in many different ways, some with a simple belt and pulley arrangement, others with hardened gears.

When selecting a belt, there are a number of things to consider, namely the width of the belt that will run on it, if you want guide bushes on the sides of the gear or a plain unit, the tooth form and number of teeth. When selecting a belt be sure to check the width and form of the tooth prior to selecting the belt and / or pulley, also consider if it is a plain pilot bore which you can modify or a specific diameter, with or without key, or a taper.

For gears, these are sold in “module” form. The way to establish the gear module is to measure the diameter and count the number of teeth you require and divide the number of teeth into the diameter. (example- 50mm dia divided by 50 teeth equals module 1 and 75mm dia divided by 50 teeth equals module 1.5). It is important that if you look at a hardened gear that the gear is finished exactly as you require it, with a soft gear you can modify the bushing and bore to suit. You will need to harden it afterwards.

Please take a look through the section for the belt, pulleys or gears you may require. We list a very small array of parts in relation to our stock, so if you do not see what you are looking for, please feel free to ask. If you need any technical assistance in calculating what pulley teeth you require for your final drive please contact us by clicking on our chat icon for an immediate response during standard UK business hours. Alternatively you can email us at technicalsupport@cncrotary.com.

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