L190 Coupling Half - 2-1/8" | L190 Hub X 2-1/8" BK55 Pulley Roller Link Width (B2): 8

Roller Link Width (B2): 8

50B16 sprockets with a stock bore comes with the standard 5/8" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

100B22H sprockets with a stock bore comes with the standard 1-5/16" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

and durable QD type sprocket that has 42 teeth

This 41BS17 sprocket featured a 5/8" finished bore with a key-way and two set screws

L190 Coupling Half - 2-1/8" | L190 Hub X 2-1/8" BK55 Pulley Roller Link Width (B2): 8The L190 coupling half with a 2 1 8" bore with a key way is also commonly called an L190 coupling hub. The compact yet robust design of this 2 1 8" bore L190 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 L190 coupling assembly is capable of optimal operation with an angular misalignment