
Timing belt Optibelt 50 / 8M 12000 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Description
OPTIBELT 50 / 8M 12000 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 50 / 8M 12000 AFX and any equivalents.
The Optibelt 50 / 8M 12000 AFX is an HTD 8M timing belt with a 12000 mm length and an 8 mm pitch. Before fitting it, inspect the drive and sheaves so the new belt runs true and wears evenly. We carry this belt and quote by part number.
Start with the sheaves. Check for worn grooves, burrs, corrosion or buildup that can damage the belt teeth or cause tracking problems. Confirm that the sheaves are aligned and that the shafts and bearings turn freely. A drive that is out of line or has a damaged sheave will shorten the life of any timing belt, including this HTD 8M profile.
Then verify the belt marking on the old part. The code 50 / 8M 12000 AFX identifies the profile, pitch and length. If the old belt is worn or the marking is unreadable, measure the length and confirm the profile before ordering. Send the part number and any photos of the drive and sheaves for a quote.
Install the new belt without forcing it over the flanges. Tension it according to the drive manufacturer's procedure, then recheck alignment and tension after the first run-in period. Keep the drive clean and free of oil or debris that can affect belt performance.
Dimensions
- Profile
- HTD 8M
- Pitch
- 8mm
- Length
- 12000mm
Frequently asked questions
- What should I check on the drive before installing this Optibelt timing belt?
- Inspect the sheaves for wear, burrs or buildup, confirm alignment, and make sure the shafts and bearings turn freely. Correct any issues before fitting the new belt.
- How do I confirm the belt I need is the 50 / 8M 12000 AFX?
- Read the marking on the back of the old belt. If it is worn, measure the length and confirm the profile is HTD 8M with an 8 mm pitch.
- How do I request a quote for this belt?
- Send the part number 50 / 8M 12000 AFX by WhatsApp or email. Include photos of the drive and sheaves if you need help confirming the right belt.

