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Description
The B87R is a heavy-duty, classical raw-edge industrial V-belt measuring 21/32 inch in top width and 89.9 inches in outside length. Commonly featured in the Timken Super II series (formerly Carlisle), it has an 87-inch inside circumference and serves as a high-performance, energy-efficient alternative to standard wrapped belts.
Key Specifications
- Top Width: 21/32 in (0.66 in / approx. 16.7 mm)
- Thickness: 13/32 in (0.41 in / approx. 10.3 mm)
- Inside Length: 87 in
- Outside Length: 89.9 in
- V-Belt Section: B-R (Classical B-section equivalent)
- Construction: Molded raw-edge sidewalls, fiber-loaded EPDM rubber
Features & Benefits
- Raw-Edge Traction: The un-wrapped, raw-edge design grips pulley walls aggressively, eliminating the energy loss, slippage, and heat buildup common in standard wrapped fabric belts.
- Central Neutral Axis (CNA): Features specialized CNA cord placement to seat the high-modulus polyester tensile cords perfectly inside the pulley groove. This ensures uniform tension and prevents belt rollover under sudden shock loads.
- Premium EPDM Compound: Engineered to handle punishing environments, resisting oil, hardening, heat, and ozone. It maintains full performance across an extreme temperature range of -50°F to 250°F.
- Chek Mate Matching: Manufactured to Timken's strict Chek Mate tight tolerances, meaning any batch of B87R belts can be paired seamlessly into a perfectly balanced, multi-groove drive configuration.
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