steel return pulleys for 6 mm ropes, pulley with 2 ball bearings

Double bearing: The pulley has two ball bearings that allow it to rotate smoothly and reduce friction. Material: Made of high-quality galvanized steel, strong, durable, and corrosion-resistant. The pulleys are treated and have a burr-free surface to protect the rope and your hands. Pulley dimensions: Length x width x height = 55 x 44 x 41 mm. The roller diameter is 30.5 mm; the roller width is 25 mm; the maximum groove width is 15 mm, the minimum groove width is 3.8 mm, and the groove depth is 8 mm. The pulley fits ropes from 1 to 8 mm. The maximum load is 200 kg, and the safety load is 50 kg. The pulleys can be used for guiding ropes, lifting objects, winches, or lightweight sliding doors. Quantity: 4 pulleys