
Timing belt Optibelt 50 AT5 / 4000 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
OPTIBELT 50 AT5 / 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 50 AT5 / 4000 AFX and any equivalents.
The Optibelt 50 AT5 / 4000 AFX is an Alpha Flex timing belt with an AT5 profile, a 4000 mm length and a 5 mm pitch. Before you fit it, inspect the drive and the sheaves so the new belt runs on a sound system.
Check the sheaves for worn teeth, chips, corrosion or buildup in the grooves, and confirm they are clean and true. Misaligned or damaged sheaves can shorten the life of any timing belt, so correct any fault before installation. Verify that the shaft bearings turn freely and that the drive has no excessive play.
Confirm the old belt marking matches the AT5 profile, the 4000 mm length and the 5 mm pitch shown here. The belt is identified by the part number 50 AT5 / 4000 AFX, so use that number when you request a quote. If the drive runs more than one belt, replace the set together so the load stays even.
Send the part number 50 AT5 / 4000 AFX by WhatsApp or email and our team will reply promptly. We carry the Optibelt Alpha Flex line and can help confirm this timing belt for your drive or suggest an equivalent.
Dimensions
- Profile
- AT5
- Pitch
- 5mm
- Length
- 4000mm
Frequently asked questions
- What are the profile, length and pitch of this belt?
- The Optibelt 50 AT5 / 4000 AFX has an AT5 profile, a 4000 mm length and a 5 mm pitch.
- What should I check on the drive before fitting this timing belt?
- Inspect the sheaves for worn or damaged teeth, confirm alignment and cleanliness, and check that the bearings turn freely. Correct any fault before you install the new belt.
- How do I request a quote for this belt?
- Send the part number 50 AT5 / 4000 AFX by WhatsApp or email. Our team replies promptly and can help confirm the right belt or suggest an equivalent.

