No. 40, B Style, .500" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

1.563 in

LTB

0.875 in

Style

B

No. Teeth

12

Finished Bore Diameter

0.500 in
Max. Bore1 1.000 in

Weight

0.340 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS12 1/2

UPC Code

097039323866

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

2.170 in

Pitch Diameter

1.932 in

Caliper Diameter

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