Bando BX34 Cogged V-belt Bx Section 37 in Outside Length

Product Description

The BANDO BX34 is a classic cogged V-belt in the BX section, designed for power transmission in industrial, HVAC, and mechanical drive applications. The cogged construction reduces bending stress, runs cooler, and delivers higher efficiency than standard wrapped belts of the same cross-section. This belt measures 37.0 inches outside length with an internal length of 34.0 inches, a width of 21/32 inch (0.66 inch), and a thickness of 13/32 inch (0.41 inch). Made from heat-resistant and oil-resistant rubber, the BX34 is built to handle demanding drive environments. It meets ARPM standards and is installed by HVAC technicians, millwrights, and mechanical service professionals.

The BX34 is suited for residential and light commercial HVAC systems, agricultural equipment, compressors, fans, pumps, and general industrial drives that use BX-section sheaves or pulleys. Its cogged profile improves grip and flex on smaller-diameter sheaves, making it a practical replacement in drives where heat buildup or slippage is a concern. This belt ships as a single unit and is a direct replacement for any application calling out a BX34 belt designation.

Key Features

• Cogged classic V-belt profile reduces bending stress and operating heat
• Heat-resistant and oil-resistant rubber compound for demanding drive environments
• 37.0 inch outside length, 34.0 inch internal length for accurate fit in BX-section drives
• 21/32 inch width and 13/32 inch thickness match standard BX sheave grooves
• Meets ARPM standards for belt dimensions and performance
• Sold individually — no minimum bundle required

Compatibility

Designed as a direct replacement for any drive system specifying a BX34 or BX-section V-belt with a 37.0 inch outside length and 21/32 inch width, including BX-groove sheaves used in HVAC blower drives, compressors, and general industrial equipment.

Installation Notes

BX-section V-belts are typically installed by HVAC technicians or mechanical service professionals. Always de-energize and lock out the drive system before removing or installing belts. Never pry a belt onto a sheave — relieve tension by adjusting the motor or idler position, seat the belt fully in the groove, then re-tension to the drive manufacturer's specification. Inspect sheave grooves for wear before installing a replacement belt to avoid premature failure.