
Timing belt Optibelt 100 AT20 / 5800 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Description
OPTIBELT 100 AT20 / 5800 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 AT20 / 5800 AFX and any equivalents.
This is an Optibelt Alpha Flex timing belt with the code 100 AT20 / 5800 AFX. Its profile is AT20, its length is 5800 mm, and its pitch is 20 mm. Those three figures are what identify the belt on a drive, so they are the first thing to check against the old part.
The profile sets how the teeth engage the pulleys, and AT20 is the profile called out for this belt. The length is 5800 mm and the pitch is 20 mm. On a synchronous drive, the profile and pitch have to match the pulleys and the length has to match the run, so a belt is only correct when all of these agree with the application.
The practical check is the marking on the back of the belt you are replacing. If it reads 100 AT20 / 5800 AFX, this is the same belt. If the profile, length or pitch differs, the belt is not a direct match, and it is worth confirming the drive before ordering.
We carry the Optibelt Alpha Flex line and supply this belt to maintenance, engineering and purchasing teams across the United States, Canada, Mexico and South America. Send the part number and we will confirm the belt or point you to the closest equivalent.
Dimensions
- Profile
- AT20
- Pitch
- 20mm
- Length
- 5800mm
Frequently asked questions
- What do the profile and length on this belt tell me?
- The profile is AT20, which describes the tooth form that engages the pulleys. The length is 5800 mm and the pitch is 20 mm. Together these define the belt's fit on the drive, so they should be matched against the pulleys and the belt being replaced.
- How do I confirm this is the right belt for my drive?
- Read the marking on the back of the belt currently fitted. If it shows 100 AT20 / 5800 AFX, it is the same belt. If any part of the marking differs, send us the details and we will check it against this Optibelt Alpha Flex belt.
- What should I send to get a quote?
- Send the part number 100 AT20 / 5800 AFX by WhatsApp or email, along with the quantity you need. If you are unsure of the belt, send the marking from the old belt or the drive details and we will help confirm the match.

