L075 Coupling Half - 15mm | L075 Hub X 15mm CA557 Roller Chain This 41BS42 sprocket features a

This 41BS42 sprocket features a 1-1/2" finished bore including a key-way and two setscrews

This 45V670SK Sheave uses an SK bushing

Part #: HCFS 202-10

60B112 sprockets with a stock bore comes with the standard 1-1/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

35BS17 7/8" Finished Bore Sprocket Dimensions

L075 Coupling Half - 15mm | L075 Hub X 15mm CA557 Roller Chain This 41BS42 sprocket features aThe L075 coupling half with a 15mm bore with a key way is also commonly called an L075 coupling hub. The compact yet robust design of this 15mm bore L075 coupling half makes it highly versatile across a broad spectrum of applications, including; pumps, blowers, compressors, mixers, motion control (servo), and more!. Depending on the insert type used, a complete L075 coupling assembly is capable of optimal operation with an angular misalignment from 0.