2 wheel trolley designed to be use with 1-5/8 by 1-5/8 strut channel in the same manner as Unistrut trolley P2949 or P2749. Fits Unistrut model P1000 series or Superstrut A-1200, A-1400, E-1200 & H-1200. Handles up to 50 lbs, multiple units can be used together to increase working load. These are perfect for industrial curtains, blackout curtains, theater curtains, backdrops, sliding doors etc. Mounting plate is 2.063 inches long and accepts standard 5/16 in bolt/hardware.
Please note that some of these trolleys use sealed bearings and some use shielded bearings. This will not affect the operation when used in the channel application.