“B” Type Sprockets, #40/#41 (#420) Chaininventories a variety of “B” & “C” Type sprockets. The most popular are shown;
you can order off the shelf. We have the capabilities to provide your needs in OEM
quantities. “B” Type Engine Sprockets are as noted and have a hub on one side.
Case-Hardened Steel
Hobbed Teeth
3/16″ Keyway
Two 5/16-18 Set Screws
5/8″, 3/4″ or 11/16″ Bore
Part No. 2101-K
Part No. 2112
5/8″ BORE
3/4″ BORE
11/16″ BORE
Teeth
Part No.
Part No.
Part No.
8
2101-K*

9
2102

2163
10
2103
2110

11
2104
2111

12
2105
2112

13
2106
2113

14
2107
2114

17
2108

*All Sprockets with a “K” in their Part No. have a
key broached into the hub rather than a keyway.
No Key is needed.
Part No. 2163 has no keyway.