Megadyne BB129 Double V-Belt, BB Section

The Megadyne BB129 is a double-angle (hex) V-belt in the BB section with a 132.5" 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 BB129.

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 BB129 interchanges with Gates BB129, Dayco BB129, Continental BB129, and Jason Industrial BB129. Browse the v belts collection.

Frequently Asked Questions

What is the Megadyne BB129 used for?

The BB129 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 BB129?

The BB129 has a 21/32" width, a 132.5" outside circumference in the BB cross section.

Is BB129 interchangeable with Gates BB129?

Yes. The BB section and length are industry-standard, so the Megadyne BB129 interchanges with Gates, Dayco, Continental, and Jason Industrial belts of the same designation.

What is the temperature rating of BB129?

The BB129 is rated for continuous operation from -22°F to 176°F.

Does BB129 ship from Houston?

Yes. The BB129 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.