
Timing belt Optibelt 100 / 8M 6400 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Description
OPTIBELT 100 / 8M 6400 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 100 / 8M 6400 AFX and any equivalents.
This Optibelt Alpha Flex timing belt is identified by the code 100 / 8M 6400 AFX. It uses the HTD 8M profile with an 8 mm pitch and a 6400 mm length. Use these three values to confirm the belt matches your drive before you request a quote.
The profile and length are the primary selection criteria here. HTD 8M defines the tooth geometry and the 8 mm pitch; 6400 mm is the datum length. If your drive is built around an HTD 8M pulley set and requires a 6400 mm belt, this code is the correct reference to start from.
When you send your request, include the full code 100 / 8M 6400 AFX and, if possible, the marking on the back of the old belt. A photo of the belt and the drive arrangement helps confirm the profile and length match. We carry Optibelt and can check this reference against your application.
Timing belts are often replaced as part of a drive refresh. Inspect the pulleys for wear and the belt for tooth damage or edge fraying at the same time. If the drive runs more than one belt, note how many are required so the quote covers the full set.
Dimensions
- Profile
- HTD 8M
- Pitch
- 8mm
- Length
- 6400mm
Frequently asked questions
- What do the profile and length tell me about this belt?
- The profile HTD 8M sets the tooth shape and the 8 mm pitch. The 6400 mm length is the belt's datum length. Together with the code 100 / 8M 6400 AFX, these are the key dimensions to match to your drive.
- How do I confirm this is the right belt for my drive?
- Check the marking on the back of the belt you are replacing and compare it to 100 / 8M 6400 AFX. Also confirm the pulley profile is HTD 8M and that the required length is 6400 mm.
- What should I send to request a quote?
- Send the full part number 100 / 8M 6400 AFX, the quantity you need, and any photos of the old belt or drive. If you have the old belt marking, include that as well so we can confirm the match.

