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This 50BS38 sprocket features a 1-15/16" finished bore including a key-way and two setscrews
6309-2RS Ball Bearing Dimensions
This 50BS27 sprocket featured a 3/4" finished bore with a key-way and two set screws
2AK51 Pulley 3/4" Dimensions
Dimension (M): 5/8"
Made in USA 42 Roller Chain Breaker 4020 Coupling Half Sprockets This 50BS38 sprocket features aThis #42 Roller chain breaker is manufactured here in the USA and is a premium quality product. This chain breaker comes with an extra tip, which almost doubles the overall life of the chain breaker! Each component of the chain breaker is constructed of premium tool grade hardened steel, which will ensure the durability, life and performance of this tool. This chain breaker is made to outlast & outperform the competition and make it easier to break
