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No. 80, B Style, 2.438" Finished Bore

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

Specifications

Hub Diameter_SYN

 N/A 4.250 in

Length Through Bore_SYN

 N/A 1.750 in

Sprocket Style_SYN

 N/A B

Number of Teeth_SYN

 N/A 21

Bore Diameter_SYN

 N/A 2.438 in

Max. Bore

 N/A 2.750 in

Weight_SYN

 N/A 8.900 lb

Tooth Width_SYN

 N/A 0.575 in

Hardened Teeth 

 N/A Yes

Industry Equivalent

 N/A 80BS21 2 7/16

UPC Code

 N/A 097039339355

Chain Technical Data

Chain Pitch_SYN

 N/A 1.000 in

Chain Number_SYN

 N/A 80

Sprocket Diameters

Outside Diameter_SYN

 N/A 7.240 in

Pitch Diameter_SYN

 N/A 6.710 in

Caliper Sprocket Diameter at 3/8 in Pitch

 N/A 6.066 in