U-groove Pulley for Motor Shaft Drive Material: Aluminum alloy Groove width 5mm, be applicable to 5 mm Round Transmission Belt. Bore: 12mm to 30mm you can select size "buy it now" Packing Quantity: 1 x Pulley with screws. Please check out our store for other size. If there is anything you need, do not hesitate to contact us. There are a variety of sizes available but they are not all listed.
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