
V-belt Optibelt B 146
- 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 →MITSUBOSHI and OPTIBELT: matching part numbers →
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Description
OPTIBELT B 146 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 146 and any equivalents.
The Optibelt B 146 is a classical V-belt in the VB / Red Power series. If you are replacing a worn belt, start by matching the profile and the length to what is on the drive now. This page gives you the dimensions to confirm against your existing belt.
The belt is profile B with a length of 3785 mm. Its top width is 17 mm, its height is 11 mm and its angle is 40 degrees. These are the figures to compare with the belt you are removing. A profile B belt will not sit correctly in a pulley grooved for another profile, so confirm the profile first, then the length.
The same size is also listed under Stark B 146 and Mitsuboshi B 146. If you are working from a different brand's marking, those are the equivalent listings to check against the Optibelt B 146. Read the marking on the back of the old belt and compare it with the profile and length above.
Send the part number, the profile and the length when you request a quote. If the marking on the old belt is worn or unreadable, send photos of the belt and the drive so the team can help confirm the right belt or suggest an equivalent.
Dimensions
- Section
- B
- Length
- 3785mm
Frequently asked questions
- How do I confirm the Optibelt B 146 is the right belt for my drive?
- Check the profile and the length against the belt being replaced. This belt is profile B, 3785 mm long, with a top width of 17 mm, a height of 11 mm and a 40 degree angle. If those match the belt on the drive, the B 146 is the correct size.
- The marking on my old belt is unreadable. What should I send?
- Send photos of the belt and the drive, and any dimensions you can measure, including the top width and the length. The team can help confirm the right belt or suggest an equivalent from the information you provide.
- Is the same size listed under other brands?
- Yes. The same size is also listed under Stark B 146 and Mitsuboshi B 146. You can use those listings to cross-check the size if your old belt carries a different brand name.

