304 Stainless Steel Pulley Block: The U groove wheel is made of 304 stainless steel which has higher strength, super capability and high quality enhance anti-deformation and corrosion resistant performance. Super Mute Duplex Bearing DesignThere 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.The thickened steel plate bracket and wheel core can enhance the bearing capacity. Specifications: U Type Pulley Block. Wheel Diameter 48mm(1.9inch). Overall Height 54mm(2.1inch). Overall Width 30mm(1.18inch). Groove Width 16mm( 0.62inch). Groove Depth 12mm, for Wire/Rope Diameter no more than 10mm. Easy InstallationPulleys are removable for easy installation. Compared with other pulleys, U groove wheel is thicker, the wheels are stronger and the bearing capacity is stronger. Wide Application: The U groove wheel is suitable for power/rolling dog/baby/garden gates, industrial carts, assembly fixtures, containers, racks, sliding gate, cantilever door, inverted track and containers racks and other equipment and projects. Item Package Quantity:1 Specifications Name : Pulley Type : U Type Quantity : 1 Color : Silver Material : 304 Stainless Steel Wheel Diameter : 48mm(1.9inch) Wheel Outer Width : 22mm( 0.86inch) Groove Width : 16mm( 0.62inch) Groove Depth : 12mm Overall Height : 54mm(2.1inch) Overall Width : 30mm(1.18inch) Max Load Bearing : 400KG/880 Pounds Features Thickened 304 Stainless Steel Wheel Body 400kg Strong Bearing Smooth Shine Wheel Anti-Slip Clamping Spring Ball Bearing inside provides a flexible turning Applications Widely used for rope tools' traction. Generally used as a rail wheel Grooved Wheel. For Wire/Rope Diameter no more than 10mm. Note Manual measurement, error 1-3mm, depending on the actual situation, please understand. Please feel free to contact us if you have any question about the product. We would try our best to solve any problem for you.