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No. 50, B Style, 1.250" Finished Bore

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

Specifications

Hub Diameter_SYN

3.250 in

Length Through Bore_SYN

1.250 in

Sprocket Style_SYN

B

Number of Teeth_SYN

40

Bore Diameter_SYN

1.250 in

Max. Bore

2.250 in

Weight_SYN

6.200 lb

Tooth Width_SYN

0.343 in

Hardened Teeth 

Yes

Industry Equivalent

50BS40 1 1/4

UPC Code

097039329844

Chain Technical Data

Chain Pitch_SYN

0.625 in

Chain Number_SYN

50

Sprocket Diameters

Outside Diameter_SYN

8.320 in

Pitch Diameter_SYN

7.966 in

Caliper Sprocket Diameter at 3/8 in Pitch

7.566 in