
V-belt Optibelt B 81 KB
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- B
- Series
- KB
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Description
OPTIBELT B 81 KB 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 81 KB and any equivalents.
This Optibelt B 81 KB is a banded V-belt with a B profile and a length of 2134 mm. Banded construction keeps multiple V-belts joined so they run as a single unit on drives with several grooves. Use it where matched sets are required and belt turnover or whip must be controlled.
Banded V-belts are common on drives that use two or more V-belts side by side, such as fans, blowers, compressors, and process machinery. The band ties the ribs together, so the set stays aligned and does not flip in the grooves. This belt is identified by its part number, B 81 KB, and its 2134 mm length.
To confirm fit, read the marking on the old belt and compare the part number. Check the profile and the length in millimeters against the drive data. If the marking is worn, send the machine and drive details with the part number so the team can help confirm the right belt.
Dimensions
- Length
- 2134mm
Frequently asked questions
- How do I confirm this is the correct belt for my drive?
- Compare the part number on the old belt with B 81 KB. Also check the profile and the 2134 mm length against the drive specification. If the old marking is not clear, send the machine details and the part number.
- What does banded mean for this belt?
- Banded means several V-belts are joined by a top band so they run as one unit. This helps keep the belts aligned and reduces flipping on multi-groove drives.
- What should I send to request a quote?
- Send the part number B 81 KB and the quantity you need. If you are replacing a set, include the number of belts on the drive. The team can help confirm the belt or suggest an equivalent.

