Timing belt Optibelt 300 / H 1140 AFX

OPTIBELT 300 / H 1140 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 300 / H 1140 AFX and any equivalents.

When you need to replace a timing belt, the marking on the back of the old belt is your starting point. This page covers the Optibelt 300 / H 1140 AFX from the Alpha Flex series, an H-profile timing belt with a length of 2895.6 mm. Use the marking to confirm this is the belt you need.

The Optibelt 300 / H 1140 AFX is a timing belt in the Alpha Flex series. It has an H profile and a length of 2895.6 mm. The marking on the back of your existing belt should show the same part number; if it does, this belt matches that specification. Timing belts are synchronous belts, so the profile and length are the critical dimensions to verify.

To request a quote, send the part number 300 / H 1140 AFX by WhatsApp or email. If the marking is worn or unreadable, include photos of the belt and the drive, and our team can help confirm the correct belt or suggest an equivalent. We carry Optibelt belts and serve maintenance, engineering and purchasing professionals across the United States, Canada, Mexico and South America.

When replacing a timing belt, inspect the pulleys for wear or damage and check the tensioner. Replacing the belt before failure helps avoid unplanned downtime. If you are unsure about the marking, our team can assist with identification.