Description <br> There are two carbon steel ball bearings inside the pulley, which can reduce the friction of the wheel. The pulley turns more flexibly and has no noise. <br> Stainless steel manufacturing, rust - proof, corrosion - resistant, outdoor use can also prevent pulley corrosion. <br> Compared with other pulleys, pulley wheel support plate is thicker, the wheels are stronger and the bearing capacity is stronger. <br> Pulleys are removable for easy installation. A single small pulley can carry 660lb/300kg <br> Specification <br> Product Name: U Type Pulley <br> Color: Silver <br> Material: 304 stainless steel <br> Installation height: 54mm(2.125in) <br> Wheel diameter: 48mm(1.889in) <br> Wheel thickness: 22mm(0.866in) <br> Groove width: 16 mm(0.629in) <br> Groove depth: 7 mm(0.27in) <br> Product weight: 280g(0.617lb) <br> Load: 300 kg (660 Ib) <br> Application <br> Generally used as a rail wheel Grooved Wheel <br> Package Contents: <br> 1pcs * U-Type Pulley <br> Only the above package content, other products are not included. <br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.