No. 40, B Style, .625" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

2.313 in

LTB

1.000 in

Style

B

No. Teeth

18

Finished Bore Diameter

0.625 in
Max. Bore1 1.500 in

Weight

1.030 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS18 5/8

UPC Code

097039324238

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

3.140 in

Pitch Diameter

2.879 in

Caliper Diameter

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