2Pcs 4 Wheel Trolley Assembly Rollers Four Bearing Trolley Assembly for 1-5/8" W
NEWHOUSE ELECTRIC 1-5/8 in. Trade Size Steel Electric Hoist Mount 4-Wheel Trolley Assembly with Sealed Bearings for 1-5/8 in Strut Channel EL4W-158H - The Home Depot
Bearing Trolley Assemblies
4 Wheel Heavy Duty Trolley Assembly with Silent M10 Bolt & 3 Nuts for All Standard 1-5/8" or Taller Strut Channel Pack of 2
B-Line B478ZN Trolley Assembly
D 1547 Two Parallel 1-1/4 in. Nylon Roller Trolley Assembly, Steel Housing, 1 Pack | City Mill