Timing belt Optibelt SL 380 AT3 / 639
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Torque
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Tell us the quantity you need and request a quote by WhatsApp or email.
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Description
OPTIBELT SL 380 AT3 / 639 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 SL 380 AT3 / 639 and any equivalents.
The Optibelt SL 380 AT3 / 639 is a timing belt in the Alpha Torque series. Its AT3 profile and 639 mm length define where it fits, so you can match it to the drive before you order.
This belt is built to the AT3 profile with a 3 mm pitch and a 639 mm length. Those three values are the ones to compare against the belt you are replacing. Read them from the marking on the back of the old belt, or measure the drive and confirm the profile and length before you send your request.
We carry the Optibelt SL 380 AT3 / 639 for maintenance, engineering and purchasing teams. Send the part number by WhatsApp or email and the team will confirm the belt or suggest an equivalent. If you are replacing more than one belt on the same drive, include every part number so the set can be checked together.
A quick look at the pulleys, tension and wear on the old belt is worth doing before you install the replacement. If the profile or length on your drive does not match this belt, send those details and the team will help you find the right one.
Dimensions
- Profile
- AT3
- Pitch
- 3mm
- Length
- 639mm
Frequently asked questions
- What do the profile and length tell me about this belt?
- The AT3 profile and 639 mm length are the two dimensions to match to your drive. The 3 mm pitch is the spacing between teeth. Confirm all three against the old belt or the pulley before ordering.
- How do I request a quote for the Optibelt SL 380 AT3 / 639?
- Send the part number by WhatsApp or email. The team replies promptly and can confirm the belt or suggest an equivalent if the exact one does not suit your drive.
- Can you help if this belt does not match my drive?
- Yes. Send the profile, length and pitch from your old belt or drive details, and the team will help identify the correct belt.