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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 1.250 in

LTB

N/A 0.875 in

Style

N/A B

No. Teeth

N/A 10

Outside Diameter

N/A 1.840 in

Pitch Diameter

N/A 1.618 in

Caliper Diameter

N/A 1.305 in
Max. Bore1 N/A 0.750 in

Weight

N/A 0.270 lb

Tooth Nominal Width

N/A 0.284 in

Hardened Teeth 

N/A Yes

UPC Code

N/A 097039314697

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°