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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

N/A 3.000 in

Length Through Bore_SYN

N/A 1.000 in

Sprocket Style_SYN

N/A B

Number of Teeth_SYN

N/A 21

Bore Diameter_SYN

N/A 1.250 in

Max. Bore

N/A 2.000 in

Weight_SYN

N/A 2.250 lb

Tooth Width_SYN

N/A 0.343 in

Hardened Teeth 

N/A Yes

Industry Equivalent

N/A 50BS21 1 1/4

UPC Code

N/A 097039328069

Chain Technical Data

Chain Pitch_SYN

N/A 0.625 in

Chain Number_SYN

N/A 50

Sprocket Diameters

Outside Diameter_SYN

N/A 4.520 in

Pitch Diameter_SYN

N/A 4.194 in

Caliper Sprocket Diameter at 3/8 in Pitch

N/A 3.782 in