16Pcs 1” Roller Ball Transfer Bearings, 360º Rotation Universal Ball Casters, 400Lbs Carbon Steel Round Ball Transfer Unit for Conveyor, Roller Stand, Transmission, Furniture

I bought 16 of these and mounted them onto a piece of wood. I put a self-adhesive rubber pad on the bottom to keep the mini transfer table in place. So, what is it for? Well, I have summer tires and winter tires which are mounted on their own wheels. With this thing I made, it is a piece of cake to change out the tire sets. I can push the wheel up flush to the hub and rotate the wheel to align the lug nut holes (my lug nuts have a male end). I don't have to try to hold the wheel in place with one hand (very difficult) and try to thread a lug nut with the other.

.Moving heavy bedroom furniture For cleaning

It would be nice if there were some screws added for installation. 1/2 inch screws is all that's needed. I like the way they move.

very strong supports a 200 lb table

Details matter, especially in an installation.Price is good less than two bucks apiece. I bought the 1" rollers. Out of the box, they roll very nicely. 400 lbs? I am not so sure. In my application these rollers should have been fine. I made drawers that fit into a big box in the back of my suv. The drawers did not slide well at all, so I thought putting these rollers through the box from the bottom would make it much better. It did not. The description says 2" wide. I Drilled a test hole but they were smaller than described.... 2 inch was the only hole saw that I had that would work. Had I known the true size around 1 7/8" I would have had that size... I got them where they needed to be, but they do not roll well at al. I put 5 rollers for less than 21" spread out evenly. Weight was no more than 300 lbs total. I am stuck with them but not happy. I would not buy these. This is my second review... first was flagged for some reason.... not sure why. Even had pics.... Only reason I tried again is because I want people to know about these rollers so they can make an educated choice.

I needed better rollers for a trundle bed These were small but strong, and easy to mount. They worked well, but unfortunately I couldn’t keep using because of my soft wooden floors. I would highly recommend over concrete, like in a shop or garage. They roll easily in any direction and had a high weight capacity.

Watch the weight limits. If you put these on furniture or a rolling cabinet, watch the weight limit! If you exceed the weight limit, these bearings self-destruct. The inner bearings become deformed and start flying out of the assembly, and they are then defective and useless. This is not a defect, it is that the consumer must pay attention to weight limits. When I put them on a cabinet, the cabinet was empty. All seemed fine. Then I overloaded the cabinet and that is why they failed. Watch the weight limits!

No problems so far. I have used these for my pick-up truck bed slide. Perfect!