No. 80, B Style, 1.438" Finished Bore

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

Specifications

Hub Diameter_SYN

 3.125 in

Length Through Bore_SYN

 1.625 in

Sprocket Style_SYN

 B

Number of Teeth_SYN

 12

Bore Diameter_SYN

 1.438 in

Max. Bore

 1.875 in

Weight_SYN

 3.000 lb

Tooth Width_SYN

 0.575 in

Hardened Teeth 

 Yes

Industry Equivalent

 80BS12 1 7/16

UPC Code

 097039337979

Chain Technical Data

Chain Pitch_SYN

 1.000 in

Chain Number_SYN

 80

Sprocket Diameters

Outside Diameter_SYN

 4.330 in

Pitch Diameter_SYN

 3.864 in

Caliper Sprocket Diameter at 3/8 in Pitch

 3.239 in