
Timing belt Optibelt 50 AT5K6 / 6400 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Tell us the quantity you need and request a quote by WhatsApp or email.
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Description
OPTIBELT 50 AT5K6 / 6400 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 AT5K6 / 6400 AFX and any equivalents.
This Optibelt Alpha Flex timing belt is identified by the code 50 AT5K6 / 6400 AFX. It uses the AT5 profile with a 5 mm pitch and a 6400 mm length. Use these three values to confirm it matches the drive before you order.
Timing belts in this size range are typically found on long-center-distance drives where synchronous motion is required and re-tensioning is difficult. The AT5 profile and 5 mm pitch define the tooth geometry, while the 6400 mm length sets the center distance. All three must match the original belt for correct fit.
To confirm, read the marking on the back of the belt you are replacing and compare it to 50 AT5K6 / 6400 AFX. Check the profile, pitch and length against the drive data. If the marking is worn or unreadable, send the belt code, the drive's tooth count and the center distance to our team.
We carry the Optibelt Alpha Flex line and supply this belt to maintenance, engineering and purchasing teams across the US, Canada, Mexico and South America. Send the part number by WhatsApp or email and we will reply promptly to confirm the belt or suggest an equivalent.
Dimensions
- Profile
- AT5
- Pitch
- 5mm
- Length
- 6400mm
Frequently asked questions
- How do I confirm this belt fits my drive?
- Match the profile (AT5), pitch (5 mm) and length (6400 mm) to the drive specification. The code 50 AT5K6 / 6400 AFX on the back of the old belt is the fastest reference.
- What information should I send for a quote?
- Send the part number 50 AT5K6 / 6400 AFX, or the full marking from the old belt, along with the drive tooth count and center distance if the marking is unreadable.
- Can you help if the marking is worn off?
- Yes. Send photos of the belt and drive, plus the center distance and pulley tooth counts. Our team will help identify the correct belt or an equivalent.

