It is a universal pulley wheel for Gym Equipment. Made of the Nylon, steel bearing in the wheel, has good wear resistance, high temperature resistance, use more smooth, more deluxe, more comfortable, more durable.
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External diameter: 115mm (4.5 inchs)
Bore: 10.2mm (for 10mm shaft)
Depth of groove: 9mm
Width of groove: 10mm