Click to expand Tap to zoom 1/2" X-Series Weld on Hub Round Bore with Keyway Set Screw Sale $16.50 SKU X-1/2 Price Each on QTY 1 - $16.50 Price Each on 2 to 11 - $15.56 Price Each on 12 or More - $14.44 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 This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. 1/2" X-Series weld on hub Bore 1/2" Fits X Series weld sprocket with 2" DIA. Bore Keyway 1/8" x 1/16" Free shipping in the USA!