Metric 12B A1 Attachment Connecting Link 10B Chain Sprockets This 100BS23 sprocket features a

This 100BS23 sprocket features a 1-15/16" finished bore with a key-way and two set screws

Dimension (B): 3

Something else that is notable about this 120C12 sprocket is that it fully meets all ANSI Standards

This 140C35 sprocket is a durable

Dimension (d1): 10mm

Metric 12B A1 Attachment Connecting Link 10B Chain Sprockets This 100BS23 sprocket features aOur superior 12B A1 attachment connecting link is designed explicitly for metric 19. 05mm pitch 12B chain and conforms to ISO and DIN dimensional standards for direct interchangeability. Each precision component of this 12B A1 attachment is made from top quality carbon steel that has been heat treated for extended working life and durability. We supply this attachment as a standard connecting link (master link) or assembled onto the 12B roller chain