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The JASON INDUSTRIAL B71 is a black rubber V-belt designed for industrial power transmission applications. Measuring 5/8 inch wide by 74 inches in length, this B-section belt delivers reliable torque transfer in demanding drive systems. It is used in equipment ranging from HVAC blower assemblies and compressors to industrial machinery and agricultural equipment. Licensed trades and maintenance professionals rely on B-section V-belts like the B71 for straightforward replacement of worn or broken drive belts in both single and multiple-belt drive configurations.
The B71 is suited for a wide range of industrial and commercial applications where a standard B-section V-belt is specified. Typical installations include belt-driven fans, blowers, pumps, compressors, and general power transmission equipment found in commercial HVAC systems, manufacturing facilities, and mechanical rooms. The 5/8 inch by 74 inch dimension matches standard B71 belt sizing used across many OEM drive systems.
Designed as a standard B71 B-section V-belt replacement for industrial and commercial drive systems that specify a 5/8 inch by 74 inch belt profile.
V-belt replacement is typically performed by mechanical or HVAC service technicians. Always de-energize and lock out the equipment before servicing the drive. Inspect sheaves and pulleys for wear or misalignment prior to installing the new belt. Do not pry the belt over a sheave with a tool; adjust center distance to allow proper seating.
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