H4020X138 20-Tooth, 40 Standard Roller Chain Finished Bore Sprocket (1/2" Pitch, 1 3/8" Bore)

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This Type B, minimum bore sprocket drives #40 standard roller chain and comes stock with a 1 3/8” finished bore. All of our sprockets are manufactured with hardened steel teeth to improve overall strength and prevent wear and tear on both the sprocket and the chain.

Bore Diameter 1 3/8” Construction Type B Minimum Bore Bore Type Finished Bore
Length Through Bore 15/16'' Application Power transmission in mechanical drive applications (conveying, lifting, industrial machinery, forestry, etc.) Chain Number 40
Pitch 1/2'' Number Of Strands 1 Material Steel
Outside Diameter 3.45'' Pitch Diameter 3.196'' Number Of Teeth 20
Thickness 0.284''