
Timing belt Optibelt 50 AT20 / 1900 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Description
OPTIBELT 50 AT20 / 1900 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 AT20 / 1900 AFX and any equivalents.
This Optibelt Alpha Flex timing belt is identified by its profile and length: AT20 profile, 1900 mm length, and 20 mm pitch. The part number 50 AT20 / 1900 AFX combines these key dimensions so you can match the belt to your drive. Use the profile and length when comparing against the belt you are replacing.
The AT20 profile is a synchronous belt profile, and the 1900 mm length is the datum you need when checking fit. The 20 mm pitch tells you the distance between tooth centers, which must match the pulley groove spacing. These three values—profile, length, and pitch—are the primary selection criteria for this belt.
When ordering, refer to the full part number 50 AT20 / 1900 AFX. If you are unsure whether this is the correct belt for your application, send us the marking on the back of your existing belt along with the pulley details. Our team can confirm the profile and length or suggest an equivalent based on the data you provide.
For a quote, contact us by WhatsApp or email with the part number and the quantity you need. We serve maintenance, engineering, and purchasing professionals across the United States, Canada, Mexico, and South America. Provide the belt marking or part number, and we will respond promptly.
Dimensions
- Profile
- AT20
- Pitch
- 20mm
- Length
- 1900mm
Frequently asked questions
- What do the profile and length mean for this belt?
- The AT20 profile indicates the tooth shape, and 1900 mm is the belt length. The 20 mm pitch is the distance between tooth centers. These dimensions must match your pulleys and drive layout.
- How do I confirm this is the right belt for my drive?
- Check the marking on your existing belt. If it shows AT20 profile, 1900 mm length, and 20 mm pitch, this belt matches those specifications. You can also send us your belt marking and pulley details for verification.
- How do I request a quote for this belt?
- Send the part number 50 AT20 / 1900 AFX and the quantity you need via WhatsApp or email. Our team will reply promptly with a quote.

