Pulleys are removable for easy installation.Compared with other pulleys, pulley wheel support plate is thicker, the wheels are stronger and the bearing capacity is stronger. Stainless steel manufacturing, rust - proof, corrosion - resistant, outdoor use can also prevent pulley corrosion. The thickened steel plate bracket and wheel core can enhance the bearing capacity. A single small pulley can carry 660lb/300kg 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. Specification Product Name: V Type Pulley Color: Silver Material: 304 stainless steel Installation height: 54mm(2.125in) Wheel diameter: 48mm(1.889in) Wheel thickness: 22mm(0.866in) Groove width: 16 mm(0.629in) Groove depth: 7 mm(0.27in) Product weight: 280g(0.617lb) Load: 300 kg (660 Ib) Application Generally used as a rail wheel Grooved Wheel Package Contents: 2Pcs * V-Type Pulley