Click to expand Tap to zoom 1/2 W-Series Weld on Hub Round Bore with Keyway Set Screw W-1/2 Sale $13.90 SKU W-1/2 Price Each on QTY 1 - $13.90 Price Each on 2 to 11 - $12.51 Price Each on 12 or More - $9.73 Quantity Discounts Price Each on QTY 1 Price Each on 2 to 11 Price Each on 12 or More 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 1/2" W-Series weld on hub Bore 1/2" Fits W Series weld sprocket with 1.63" DIA. Hub for sprocket Keyway 1/8" x 1/16" Free shipping in the USA!