
V-belt Optibelt AA 75
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- AA
- 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.
DAYCO 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 AA 75 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 AA 75 and any equivalents.
The Optibelt AA 75 is a double-V (hexagonal) belt in the DK series with an AA profile. Double-V belts are used where a drive needs power taken off both sides of the belt, and this one suits maintenance and replacement work on that type of drive. Confirm the profile and the existing belt marking before you order.
A double-V belt runs on pulleys that contact both faces, so it is found on drives that turn two sets of sheaves from one belt path. In plants this is often a reversing or multi-shaft arrangement rather than a simple two-pulley drive. The hexagonal cross section is the key detail: a standard V-belt will not sit correctly in a double-V sheave.
To confirm fit, read the marking on the back of the old belt and check it against the profile AA and the part number AA 75. Inspect the sheave grooves for wear, and check that the pulleys are aligned before the new belt goes on. Where a drive uses more than one belt, replace the set together so the load stays even.
The same size is also listed under Dayco AA 75 and Gates AA 75, which can help when you are matching what is already on the machine. Send the part number, the belt marking and a photo of the drive if you want the team to confirm the right belt or suggest an equivalent.
Dimensions
- Section
- AA
Frequently asked questions
- How do I confirm this is the correct belt for my drive?
- Check the marking on the back of the belt you are replacing and compare it with the profile AA and the part number AA 75. Also confirm the drive uses a double-V (hexagonal) belt, since the sheaves must contact both faces.
- Can I replace just one belt on a multi-belt drive?
- On a drive that runs more than one belt, replace the set together. Mixing a new belt with worn ones can leave the load uneven across the grooves.
- What should I send to get a quote?
- Send the part number AA 75, the profile AA, and the belt marking from the old belt. A photo of the drive and the sheave arrangement helps the team confirm the right belt or suggest an equivalent.

