Description
Megadyne BB128 Double V-Belt, BB Section
The Megadyne BB128 is a double-angle (hex) V-belt in the BB section with a 131.5" outside circumference. Its symmetrical profile transmits power from both sides, making it ideal for serpentine drives with multiple driven pulleys. It is a direct replacement for Jason Industrial BB128.
| Specification | Value |
|---|---|
| Part Number | BB128 |
| Cross Section | BB |
| Construction | Double-V (hex) |
| Top Width | 21/32" |
| Thickness | 0.55" |
| Outside Circumference | 131.5" |
| Temperature Range | -22°F to 176°F |
Applications
- Serpentine drives with multiple driven pulleys
- Drives requiring power transmission from both belt sides
- Agricultural machinery
Cross-References
The BB cross section and length are industry-standard, so the BB128 interchanges with Gates BB128, Dayco BB128, Continental BB128, and Jason Industrial BB128. Browse the v belts collection.
Frequently Asked Questions
What is the Megadyne BB128 used for?
The BB128 is used for serpentine drives with multiple driven pulleys, such as drives requiring power transmission from both belt sides and agricultural machinery.
What are the dimensions of BB128?
The BB128 has a 21/32" width, a 131.5" outside circumference in the BB cross section.
Is BB128 interchangeable with Gates BB128?
Yes. The BB section and length are industry-standard, so the Megadyne BB128 interchanges with Gates, Dayco, Continental, and Jason Industrial belts of the same designation.
What is the temperature rating of BB128?
The BB128 is rated for continuous operation from -22°F to 176°F.
Does BB128 ship from Houston?
Yes. The BB128 ships from the Texas Belting & Supply warehouse in Houston, TX, with same-day shipping on stock items. Call (888) 203-2358 for stock and lead time.
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