BlackStar 4B58SD - QD Sheave 5M Specifications Part Number 50BS58 1

Specifications Part Number 50BS58 1 3/8 K2S Chain Pitch 50 Number of Teeth 58 Bore Size 1-3/8" Minimum Bore 1" Maximum Bore 1-15/16" Bore Type Finished Bore (Keyway + Set Screws) Hub Style Finished Bore Strand Count Single Material Steel Outside Diameter 11

The 12/C330 has a 7/8" width

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BlackStar 4B58SD - QD Sheave 5M Specifications Part Number 50BS58 1The BlackStar 4B58SD is a 4 groove qd sheave for B section belts, manufactured from cast iron. Requires a QD Type SD Bushing (sold separately) to mount to your shaft. Specifications Part Number 4B58SD Product Type QD Sheave Number of Grooves 4 Belt Profile B Outside Diameter 6. 15" Material Cast Iron Approx. Weight 10. 000 lbs Bushing Required QD Type SD Bushing Pitch Diameter 5. 8" Compatible Belts A, B, 4L, 5L Bushing Required This sheave requires a