Sealed Rail Groove Wheel U Groove Wheel For Movable Door Wire Rope Track Wheel For Tower Crane Accessories For Various Feature:1. Low friction, faster speed and not easy to burn, stronger load resistance, more durable, long service life at low temperatures.2. Thicker and widened design, heavier load. Good wear resistance.3. Protect the wire rope and prolong the service life of the wire rope. (Compared with steel rope pulley, it can extend the service life of the wire rope by 8 times).4. Adopting high quality nylon material. No friction sparks and high safety performance.5. Suitable for movable on door, wire rope wheel track, tower crane accessories, widely used in various lifting equipment. Specification: Item Type: Groove Wheel Material: NylonLoad Capacity: Approx. 200kg/440.9lb Diameter: Approx. 50mm/1.97in Support Thickness: Approx. 2.5mm/0.1in Application: Movable for Door, Wire Rope Track Wheel, Tower Crane Accessories, Widely Used in Various Lifting Equipment Packing List: 1 x Wheel Groove 1) We accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow. 2) Payment must be made within 3 days of placing the order. 3) If you can't check out immediately after the auction ends, please wait a few minutes and try again, payments should be completed within 3 days. About Shipping 1.