BlackStar 3020 2 1/8 - Taper Lock Bushing - 2 1/8" Bore Tru-Loc The BlackStar H50BTL21 is a

The BlackStar H50BTL21 is a 50 pitch Taper Lock roller chain sprocket with 21 teeth

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Specifications Part Number H78BS10 2 7/16 K2S Chain Pitch 78 Number of Teeth 10 Bore Size 2-7/16" Bore Type Finished Bore (Keyway + Set Screws) Hub Style Finished Bore Strand Count Single Material Steel Hardened Teeth Yes Approx

Specifications Part Number D80R72 Chain Pitch 80 Number of Teeth 72 Bore Type Plain Bore Hub Style R Strand Count Double Material Steel Outside Diameter 23

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BlackStar 3020 2 1/8 - Taper Lock Bushing - 2 1/8" Bore Tru-Loc The BlackStar H50BTL21 is aThe BlackStar 3020 2 1 8 is a 3020 series taper lock bushing with a 2 1 8" finished bore, precision manufactured from high grade steel. Taper Lock bushings provide a secure, concentric grip on the shaft through a precision machined taper, ensuring reliable power transmission. Specifications Part Number 3020 2 1 8 Bushing Type Taper Lock Series 3020 Bore Size 2 1 8" Minimum Bore 1 2" Maximum Bore 2 3 4" Outside Diameter 4. 250" Length 2" Material Steel