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The Gates BX39 Tri-Power Belts is a cogged V-belt featuring Cogged B-section dimensions
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The 5L and B sections share the same 21/32" top width and fit the same sheaves
"text": "1223K5 has 5 ribs
BlackStar 10HS SLEEVE - Jaw Coupling Sleeve (Hytrel) - 3.438" Bore Timing Pulley The Gates BX39 Tri-Power BeltsThe BlackStar 10HS SLEEVE is a jaw coupling sleeve (hytrel), manufactured from hytrel. Features a 3. 438" bore for direct shaft mounting. Hytrel polyester elastomer replacement spider for jaw couplings. Hytrel sleeves handle higher torque and temperatures than standard NBR spiders while maintaining flexibility ideal for demanding industrial drive applications. Specifications Part Number 10HS SLEEVE Product Type Jaw Coupling Sleeve (Hytrel) Bore Size
