This 41BS60 sprocket features a 1-3/16" finished bore including a key-way and two setscrews
50B25 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
the 12B A2 attachment has a bent tab on one side with two holes for mounting
This 6206 ball bearing is a high-precision premium quality deep groove 30x62x16 ball bearing made to ABEC 3 precision standards from AXIS
4TB64 Sheave four-groove 6.75" OD filter_H25B28 This 41BS60 sprocket features aThis 4TB64 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 6. 75" in diameter, and is manufactured in accordance with ARPM Standard for safe operation. With B series TB pulleys you can use A, 4L, B, 5L, AX, BX, AA, and BB belts. What separates this four groove 4TB64 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using the