Timing belt Optibelt 25 T20 / 3400 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 25 T20 / 3400 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 25 T20 / 3400 AFX and any equivalents.
The Optibelt Alpha Flex 25 T20 / 3400 AFX is a timing belt with a T20 profile and a 3400 mm length on a 20 mm pitch. Before a belt of this size goes on, the drive itself is worth a look. We carry this belt and quote it by part number.
A new belt will not correct a drive that is already out of condition. Check the sheaves for worn teeth, runout, and damage in the grooves, and confirm they are aligned to each other. Any debris or buildup in the tooth spaces should be cleared before the belt is seated. On a long T20 drive, small errors at the sheaves show up as uneven wear across the belt width.
Confirm the tensioning arrangement moves freely and has enough travel for a fresh belt. Inspect the flanges, guards, and any idler or guide components in the path, since a seized or rough-running part will shorten belt life regardless of the belt fitted. On a synchronous drive, a belt that runs off-center or climbs a flange usually points back to alignment rather than the belt.
Once the drive checks out, fit the belt and tension it to the drive manufacturer's specification. Log the part number and the date so the next inspection has a reference point. To request a quote, send the code 25 T20 / 3400 AFX by WhatsApp or email and our team will confirm it for your drive.
Dimensions
- Profile
- T20
- Pitch
- 20mm
- Length
- 3400mm
Frequently asked questions
- What are the profile, length, and pitch of this belt?
- It is a T20 profile timing belt with a 3400 mm length and a 20 mm pitch, supplied under the Optibelt Alpha Flex series code 25 T20 / 3400 AFX.
- What should I check on the drive before fitting it?
- Inspect the sheaves for worn or damaged teeth and runout, verify alignment between the pulleys, clear any buildup from the tooth spaces, and confirm the tensioner has full travel. Also check idlers and guides in the belt path.
- How do I request a quote?
- Send the part number 25 T20 / 3400 AFX by WhatsApp or email. Our team replies promptly and can confirm the belt for your application.