
V-belt Optibelt BB 73
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- BB
- Series
- DK
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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.
MITSUBOSHI and OPTIBELT: matching part numbers →GATES and OPTIBELT: matching part numbers →
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
OPTIBELT BB 73 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 BB 73 and any equivalents.
The Optibelt BB 73 is a double-V (hexagonal) belt in the DK series, with a BB profile. This belt is used where both sides of the belt contact the sheaves, so the condition of the drive and the sheaves matters before you fit a replacement.
Before fitting the Optibelt BB 73, inspect the sheaves for wear, grooves, or damage that can shorten belt life. Check alignment and make sure the sheave grooves match the BB profile. A quick inspection at this stage helps the new belt run correctly from the start.
If you are matching an existing belt, the marking on the back of the old belt gives you the profile and the part number. This belt is identified as BB 73. The same size is also listed under Mitsuboshi BB 73 and Gates BB 73, which can help when you are comparing what is on the drive.
For a quote, send the part number BB 73 and the quantity you need. If you are unsure about the profile or the length, include a photo of the belt marking and the sheave details. The team can confirm the right belt or suggest an equivalent.
Dimensions
- Section
- BB
Frequently asked questions
- What type of belt is the Optibelt BB 73?
- It is a double-V (hexagonal) belt in the DK series with a BB profile.
- What should I check before fitting this belt?
- Inspect the sheaves for wear and damage, verify alignment, and confirm the sheave grooves match the BB profile.
- What do I need to send for a quote?
- Send the part number BB 73 and the quantity. If you need help confirming the belt, include a photo of the belt marking and the sheave details.

