20A (ASA 100) sprockets

20A (ASA 100) sprockets fit 100 roller chain of 1 1/4" (31.75 mm) pitch to ANSI B29.1. This is a size for heavy drives where high load capacity at low speed counts.

ASA 100 sprockets - replacements for original sprockets in machines with inch-pitch chain

Instead of waiting for an original part for an inch-dimensioned machine, you can buy a standard-compliant sprocket that works with 100 chain from any manufacturer. Small hub sprockets usually run on the gearbox shaft, while large plate wheels are fixed to a hub or machine flange - making it easy to rebuild a worn drive assembly. We make the sprockets from C45 steel.

20A simplex and duplex sprockets with hub or plate type

Simplex and duplex sprockets (100-1, 100-2) with a pilot bore hub and in plate version.

Does a 20A sprocket fit 20B - questions about ASA 100 sprockets

Does a 20A sprocket fit 20B chain?

No. 20B chain has the same pitch, but a different inner width and strand spacing. For European chain choose a B series sprocket.