V-belt Dayco AA128
- Brand
- DAYCO
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- AA
- Series
- Double angle industrial belt
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Other brands for this category
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Description
DAYCO AA128 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 AA128 and any equivalents.
The Dayco AA128 is a double-V (hexagonal) belt in the AA profile with a length of 3302 mm. It is built for drives that need power transmitted from both sides of the belt, where a standard V-belt will not fit the pulley arrangement. The same size is also listed under Gates AA128.
When replacing a double-V belt, the first step is to read the marking on the back of the old belt. Confirm the profile is AA and the length is 3302 mm, then match those two values to the Dayco AA128. Because hex belts can run in either direction, check that the old belt is a true double-V and not a single V-belt that has been folded or misidentified. If the old marking is worn or missing, measure the outside length and compare it to the 3302 mm figure before ordering.
A double-V belt sits in pulleys that grip both the top and bottom faces, so the belt must seat correctly in every groove. Inspect the pulleys for wear, debris or damaged sidewalls while the belt is off. If the drive uses more than one belt, replace them as a set so the load stays evenly divided. After installation, check tension according to the drive manufacturer's procedure and recheck it after the first run-in period.
Dimensions
- Section
- AA
- Length
- 3302mm
Frequently asked questions
- How do I confirm the Dayco AA128 is the right belt for my drive?
- Read the marking on the back of the belt being replaced. You need to see the AA profile and a 3302 mm length. If those match, the Dayco AA128 is the correct size. If the marking is unreadable, measure the belt and compare it to the 3302 mm length.
- Can I use the Gates AA128 instead?
- The same size is also listed under Gates AA128, so it is an alternative listing for the same profile and length. Send us the part number you have and we can help confirm the match.
- What should I send to request a quote?
- Send the part number Dayco AA128, the quantity you need, and a photo of the old belt marking if you have one. You can reach us by WhatsApp or email, and we will reply promptly.