304 Stainless Steel Pulley: The U-groove wheel is made of 304 stainless steel, which has higher strength, super capacity, and high quality, improving anti-deformation and corrosion-resistant performance. Super Quiet Duplex Bearing Design: There are two carbon steel ball bearings inside the roller, which can reduce the friction of the wheel. The roller spins more flexibly and has no noise. The thickened steel plate bracket and wheel core can improve the load-bearing capacity. Specifications: U-type pulley. Wheel diameter 48 mm (1.9 inches). Total height 54 mm (2.1 inches). Total width 30 mm (1.18 inches). Groove width 16 mm (0.62 inches). Groove depth 12 mm, for wire/rope diameter no more than 10 mm. Easy Installation: The rollers are detachable for easy installation. Compared with other rollers, the U-groove wheel is thicker, the wheels are stronger, and the load-bearing capacity is stronger. Wide Application: The U-groove wheel is suitable for power/rolling dog/baby/garden gates, industrial carts, assembly fixtures, containers, shelves, sliding gates, cantilever doors, inverted tracks, and container shelves 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: 48 mm (1.9 inches) Wheel Outer Width: 22 mm (0.86 inches) Groove Width: 16 mm (0.62 inches) Groove Depth: 12 mm Total Height: 54 mm (2.1 inches) Total Width: 30 mm (1.18 inches) Max Load Capacity: 400 kg / 880 pounds Features Thickened 304 stainless steel wheel body 400 kg strong load capacity Smooth gloss wheel Anti-slip clip Spring Ball bearings inside provide flexible rotation Applications Widely used for pulling rope tools. Widely used as a rail wheel Track wheel. for wire/rope diameter no more than 10 mm. Note Manual measurement, error 1-3 mm, depending on the actual situation, please understand. Please do not hesitate to contact us if you have any questions about the product. We would do our best to solve any problems for you.