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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.
50A21H-SB Type A Plate Sprocket for #50 Roller Chain - 21 Tooth - 3/4" Stock Bore

50A21H-SB Type A Plate Sprocket for #50 Roller Chain - 21 Tooth - 3/4" Stock Bore

$21.40
SKU 50A21H-SB
Quantity Discounts

50A21H - SB (3/4") Bore

Heat Treated Type A PLATE Sprocket

for #50 Roller Chain

21 Tooth 

Outside Diameter = 4.520"

Pitch Diameter = 4.194

Free shipping in the USA!