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No. 40, B Style, .500" plain bore
Has recessed groove in hub for chain clearance
Consult U.S. Tsubaki for availability of No. 41 Plain Bore Sprockets.

All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Stock Bore Diameter

 N/A 0.500 in

Hub Diameter

 N/A 0.984 in

LTB

 N/A 0.875 in

Style

 N/A B

No. Teeth

 N/A 8

Outside Diameter

 N/A 1.510 in

Pitch Diameter

 N/A 1.307 in

Caliper Diameter

 N/A 0.995 in
Max. Bore1 N/A 0.500 in

Weight

 N/A 0.180 lb

Tooth Nominal Width

 N/A 0.284 in

Hardened Teeth 

 N/A Yes

UPC Code

 N/A 097039314673

Chain Technical Data

Pitch

 N/A 0.500 in

Chain Size

 N/A 40
  • 1 Dimensions shown allow for standard keyway with set screw at 90°