No. 40, B Style, 1.125" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

2.500 in

LTB

1.000 in

Style

B

No. Teeth

19

Finished Bore Diameter

1.125 in
Max. Bore1 1.750 in

Weight

1.170 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS19 1 1/8

UPC Code

097039324368

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

3.300 in

Pitch Diameter

3.038 in

Caliper Diameter

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