No. 40, B Style, 1.188" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

2.625 in

LTB

1.000 in

Style

B

No. Teeth

20

Finished Bore Diameter

1.188 in
Max. Bore1 1.875 in

Weight

1.330 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS20 1 3/16

UPC Code

097039324467

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

3.460 in

Pitch Diameter

3.196 in

Caliper Diameter

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