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B Series Industrial Classical V Belt

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Classical B Series V-Belts – Heavy-Duty Power Transmission for Industrial Applications

When high-torque performance and reliability are essential, Classical B Series V-Belts provide the rugged strength required to power heavy-duty machinery and demanding drive systems. Designed for industrial-grade use, B-series belts are ideal for applications that involve high horsepower, larger pulley diameters, and continuous operation.

These belts feature a trapezoidal cross-section, engineered to maintain optimal contact with pulleys for maximum torque transfer and minimal slippage. Made from high-quality rubber compounds and reinforced with strong polyester or aramid cords, B-series belts are oil-resistant, heat-resistant, and anti-static, ensuring long service life even in harsh environments.

B Series V-Belt Specifications:

  • Top Width: 21/32 inch (0.656")

  • Height (Thickness): 13/32 inch (0.406")

  • Pitch Length: Outside length – 3.0 inches

  • Common Lengths: 25" to over 200"

  • Compliant with RMA standards for industrial V-belts

Common Applications:

  • Agricultural equipment (tractors, balers)

  • Manufacturing conveyors and processing systems

  • Heavy-duty HVAC units and air compressors

  • Large pumps, mixers, and grinders

  • Construction and mining machinery

B Series vs. 5L Series V-Belts

Though B-series and 5L-series belts both have a top width of 21/32 inch, they differ in application and construction:

  • B-series belts are built for industrial use, with higher horsepower capacity and more rugged materials.

  • 5L belts are fractional horsepower (FHP) belts for light-duty commercial or residential applications.

Pitch Length Difference:

  • B Series: Pitch Length ≈ Outside Length – 3.0 inches

  • 5L Series: Pitch Length ≈ Outside Length – 1.5 inches

This distinction is crucial when replacing or cross-referencing belts in different systems.