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No. 40, B Style, 1.00" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter_SYN

N/A 3.250 in

Length Through Bore_SYN

N/A 1.000 in

Sprocket Style_SYN

N/A B

Number of Teeth_SYN

N/A 28

Bore Diameter_SYN

N/A 1.000 in

Max. Bore

N/A 2.250 in

Weight_SYN

N/A 2.500 lb

Tooth Width_SYN

N/A 0.284 in

Hardened Teeth 

N/A Yes

Industry Equivalent

N/A 40BS28 1

UPC Code

N/A 097039325167

Chain Technical Data

Chain Pitch_SYN

N/A 0.500 in

Chain Number_SYN

N/A 40

Sprocket Diameters

Outside Diameter_SYN

N/A 4.740 in

Pitch Diameter_SYN

N/A 4.465 in

Caliper Sprocket Diameter at 3/8 in Pitch

N/A 4.153 in