Timing belt Optibelt 75 AT20 / 7800 AFX

OPTIBELT 75 AT20 / 7800 AFX belongs to timing belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 75 AT20 / 7800 AFX and any equivalents.

The Optibelt 75 AT20 / 7800 AFX is an Alpha Flex timing belt in the AT20 profile with a 7800 mm length and a 20 mm pitch. This page covers how to match it against the belt you are replacing.

Start with the marking on the back of the belt you are removing. Read the profile, the length and the part number as printed, then compare them with the AT20 profile, the 7800 mm length and the 20 mm pitch listed here. If the marking is worn or unreadable, measure the belt and the drive instead of guessing, and note the tooth profile and the number of teeth.

A timing belt is defined by its tooth profile and its pitch, so the AT20 profile and the 20 mm pitch must agree with the pulleys on the drive. The length must also match, since a belt that is too long or too short will not run correctly on the same centers. Check the pulleys for worn teeth or damage before fitting a new belt.

If the drive runs more than one belt, inspect all of them and replace them together so the load stays even. Send the part number, the profile, the length and the pitch by WhatsApp or email and our team will confirm the belt or suggest an equivalent.