Timing belt Optibelt 75 AT20 / 4000 AFX

OPTIBELT 75 AT20 / 4000 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 / 4000 AFX and any equivalents.

This Optibelt Alpha Flex belt is a timing belt with profile AT20 and a length of 4000 mm. The 20 mm pitch and the AT20 profile define how the belt meshes with the pulleys, so the code on the back is the fastest way to confirm you are specifying the same item. We carry it for maintenance, engineering and purchasing teams who need to match a belt by its profile and length.

When you read the code 75 AT20 / 4000 AFX, the two values that drive the match are the profile and the length. AT20 is the tooth profile, and 4000 mm is the belt length. The pitch is 20 mm. If your drive was built around those figures, this is the belt to quote.

The practical check is on the old belt itself. Look for the marking on the back, note the profile and the length, and compare them with the data here. If the marking is worn or the belt is missing, measure the length and identify the tooth profile before you order. Send the part number or those details and we will confirm the belt or suggest an equivalent.

For drives that run more than one belt, replacement in sets keeps the load shared evenly. Inspect the pulleys at the same time for worn teeth or debris, since either will shorten the life of a new timing belt. If you are unsure whether this Optibelt Alpha Flex belt fits your application, send the drive details with your request.