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

Specifications

Hub Diameter

3.250 in

LTB

1.000 in

Style

B

No. Teeth

32

Finished Bore Diameter

1.250 in
Max. Bore1 2.250 in

Weight

3.000 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS32 1 1/4

UPC Code

097039325556

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

5.380 in

Pitch Diameter

5.101 in

Caliper Diameter

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