Fuperoo 4 Wheel Trolley Assembly,Unistrut Trolley Rollers.Screws can be Installed Inside The Strut Channel.for 1-5/8"strut Channel (4 Wheel Trolley 2pcs) - NEW GOID Electromechanical Co., Ltd., 6 Wheel Trolley Assembly

• strut channel trolley Load ：1600lbs/1PCS Wheel Trolley Assembly leaves a 7mm space at the top, the fixing screw can be installed inside the strut channel and will not affect the trolley sliding back and forth. No higher strut channel and Track Hanger Bracket are needed, saving the cost of the whole system. Bearing Trolley Assembly has a raised front part that protects the bearing to avoid shortening the life of the bearing after a long impact. Quality of unistrut rollers: made of Q235 alloy steel, galvanized process. Adopt rubber ring seal bearing, with good sealing and long service life. Solid steel pin, with super load bearing capacity, safe and reliable. Trolley assembly for use With P1000, P1001 , P5000, P5001, P5500, P5501 and All 1-5/8" or Taller Strut Channel, Weight: 1.57 Pounds, Manufacturer: NEW GOID Electromechanical Co., Ltd.