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

Specifications

Hub Diameter

3.500 in

LTB

1.125 in

Style

B

No. Teeth

42

Finished Bore Diameter

0.625 in
Max. Bore1 2.375 in

Weight

4.640 lb

Tooth Nominal Width

0.284 in

Hardened Teeth 

Yes

Industry Equivalent

40BS42 5/8

UPC Code

097039326126

Chain Technical Data

Pitch

0.500 in

Chain Size

40

Sprocket Diameters

Outside Diameter

6.970 in

Pitch Diameter

6.691 in

Caliper Diameter

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