No. 40, B Style, 1.250" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

2.875 in

LTB

1.000 in

Style

B

No. Teeth

22

Finished Bore Diameter

1.250 in
Max. Bore1 1.875 in

Weight

1.660 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS22 1 1/4

UPC Code

097039324658

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

3.780 in

Pitch Diameter

3.513 in

Caliper Diameter

3.201 in
  • 1 Dimensions shown allow for standard keyway with set screw at 90°.