100B45 Sprocket With Stock Bore Metric SA1 Attachments Pitch Diameter: 73

Pitch Diameter: 73

This 100BS20 sprocket features a 2" finished bore with a key-way and two set screws

so it directly interchanges with other ANSI

Bore: 13/16"

and precision A-Plate sprocket with 28 teeth that is manufactured out of high-quality steel

100B45 Sprocket With Stock Bore Metric SA1 Attachments Pitch Diameter: 73This 100B45 sprocket is a durable, premium quality, and precision 45 tooth sprocket that is manufactured out of high quality steel. This sprocket is manufactured for optimum performance, durability, and to strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket, preventing premature wear or breakage. It is