V-belt Optibelt B 78
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- B
- Series
- VB / Red Power
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Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
GATES and OPTIBELT: matching part numbers →OPTIBELT and STARK: matching part numbers →
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Description
OPTIBELT B 78 belongs to v-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 B 78 and any equivalents.
This Optibelt B 78 belt is a classical V-belt in the VB / Red Power series. The profile and the 2057 mm length are the two values that decide whether it fits your drive. The same size is also listed under Stark as B 78.
The B profile sets the cross-section: 17 mm top width, 11 mm height and a 40° angle. That section has to match the pulley groove, because a different profile will not seat correctly no matter how close the length is. The 2057 mm length is the datum you compare against the old belt or the drive drawing.
For a quote, send the part number B 78 and confirm the profile and length you need. If the belt on the machine is worn or unmarked, read whatever is still legible on the back and measure the outside length. A photo of the drive and the old belt helps us confirm the right belt or suggest an equivalent.
Dimensions
- Section
- B
- Length
- 2057mm
Frequently asked questions
- What do the profile and length tell me about this belt?
- The B profile gives a 17 mm top width, 11 mm height and 40° angle, so it fits B-section pulleys. The 2057 mm length is the dimensional value you match to the drive.
- How do I confirm this is the belt on my drive?
- Check the marking on the back of the old belt for B 78, then compare the profile and the 2057 mm length with the drive drawing or a measurement of the old belt.
- What should I send to request a quote?
- Send the part number B 78, the quantity, and the profile and length you need. If the old belt is unmarked, include a photo of the drive and any remaining marking.