Timing belt Optibelt 8 AT3 / 639
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Torque
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Description
OPTIBELT 8 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 8 AT3 / 639 and any equivalents.
This Optibelt Alpha Torque timing belt is identified by the code 8 AT3 / 639. It has an AT3 profile, a 639 mm length and a 3 mm pitch. Synchronous belts like this one are used where the drive must keep the driven shaft in step with the drive shaft.
Typical uses for a timing belt of this type include positioning axes, small conveyors, packaging equipment, and other drives where slip is not acceptable. The AT3 profile and 3 mm pitch indicate a compact tooth form suited to smaller pulleys and lighter loads, while the 639 mm length sets the center distance of the drive.
To confirm fit, read the marking on the back of the old belt and compare it with the code 8 AT3 / 639. Check that the profile is AT3, the length is 639 mm and the pitch is 3 mm. Also inspect the pulleys for worn teeth, the flanges for damage, and the belt for cracked teeth or exposed cords before ordering.
When you send your quote request by WhatsApp or email, include the full part number 8 AT3 / 639 and the quantity you need. If the marking is worn, send a photo of the belt and the pulley so the team can help confirm the correct belt.
Dimensions
- Profile
- AT3
- Pitch
- 3mm
- Length
- 639mm
Frequently asked questions
- What does the code 8 AT3 / 639 tell me about this belt?
- It identifies an Optibelt Alpha Torque timing belt with an AT3 profile, a 639 mm length and a 3 mm pitch. Use these three values to compare against the belt you are replacing.
- How can I confirm this belt fits my drive?
- Read the marking on the back of the old belt and match the profile AT3, the length 639 mm and the pitch 3 mm. Also check the pulley teeth and flanges for wear.
- What should I send to request a quote?
- Send the part number 8 AT3 / 639 and the quantity you need by WhatsApp or email. If the old belt marking is unclear, include a photo of the belt and pulley.