P2750-EG 4 Wheel Light Duty Trolley Assembly for Unistrut, Use for All 1-5/8" P1000, P1001, P5000, P5001, P5500, P5501 or Taller Strut Channel, Unistrut, Superstrut (4PACK)

Trolley fits my Unistrut channel perfectly. These roll smoothly and arrived in great shape. They have a 1/4-20 threaded hole in the center so you can easily mount things to them. I have camera equipment and microphone arms hanging from mine. I recommend these.

used on slab doors to make barn door style sliders worked great and has a cool look when hung on track from ceiling.

Works really well. The bearing roll very smooth.

No nuts and bolts with it for assembly. Or instructions.

Fits in 1-5/8 strut channel perfect and slides smooth with load of a door.

Great buy

Mounted onto truck bed with the rollers up. Used to slide equipment out of the bed. Works well.

I used these trolley wheels for a diy ev charging cable management system. I used a channel strut and these trolley wheels to hold up the charging cable off the ground to keep the floor free and cable from getting dirty, specially in inclement weather. The trolley wheels rolls smoothly in the channel strut. It does have a bit of play side to side, but the trolley wheel remains securely inside the strut as it travels the length of the channel strut.