Additionally this 40BB17H idler sprocket was engineered to be extremely durable and high performance
35A70 Sprockets Dimension
08B28H sprockets with a stock bore comes with the standard 16 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
This 80BS52 sprocket features a 2" finished bore including a key-way and two setscrews
What separates this 2BK40H pulley from the others is that it is made using a high grade-35 cast iron
AXIS 1641-ZZ Bearing | ABEC 3 Shielded 1641-ZZ Ball Bearing 24-Tooth Sprocket Additionally this 40BB17H idler sprocketAXIS Brand 1641 ZZ ball bearing is manufactured with precision, performance, and longevity in mind. specifically, size 1641 ZZ bearing utilizes the shielded design for keeping the premium Mobil Polyrex EM grease in, while keeping contents out, the benefit of this is longer performance and bearing protection. What sets AXIS brand deep groove 1641 ZZ bearings apart from others is the utilization of grade 10 balls, a high strength steel retainer, being