SKTREX 4 Wheel Silent Trolley Assembly Rollers Four Bearing Trolley Assembly for 1-5/8" Wide and All 1-5/8" or Taller unistrut Strut Channel with M10 Bolt and Lifting Eye Nuts

Worked great. I used them in a meat locker. Hook up an elk quarter and slide it back, hook up another a d slide it back. They worked great. Smooth rolling and strong!

These work really well, I used them for custom pocket doors because the big box store components were binding up with the weight of my doors. Even under weight these roll smooth and the mounting is strong! Note that The clearance inside the strut bar is tight so I suggest you countersink your mounts.

These things worked great in a piece of tracking overhead in the garage to make a small trolly system

I purchased the channel at Home Depot that showed to be the correct size but the rollers would not roll smoothly. So I ended up purchasing the track from the company. A problem is they listed it as 5’ but it was 58” so I had to modify the way I was going to attach it to the ceiling of my garage. I did get it installed but it was quite a chore.

Pay attention to the way you insert the bolt. Once you do that it works like a champ. Slid a heavy object across the track with no problem.

The bolts need to have fully threaded body to be secured properly. These only have thread for about 1/2 body. Also, screw head is too thick to allow trolley to fit into standard 1-5/8 channel. Now I’m off to try to find a bolt that works, otherwise I will be returning the item. Either way, 1-star for making me try and find a solution.

These work so good. I highly recommend this for a over head trellis.

I was tickled when I found a use case for this and saving at least $150. This met my spec requirements and the construction and material far exceeded what I needed. I'm using this to augment a bicycle storage track system (Stashed) and using it to carry bags from a rail. The construction of these looks like it could carry weight in the hundreds...probably more than an aluminum track system can support.