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You might not think engineers are brave.....But it took balls of steel to make the first bearings.
You might not think engineers are brave.....But it took balls of steel to make the first bearings.

50A18H-SB Type A Plate Sprocket 18 Teeth for #50 Roller Chain

$13.75
SKU 50A18H-SB
title

50A18H - SB (5/8") Bore

Heat Treated Type A PLATE Sprocket

for #50 Roller Chain

18 Tooth 

Outside Diameter = 3.920"

Pitch Diameter = 3.599"

Free shipping in the USA!