Karman HealthcareCaster with 5/16 inch Bearing, Gray, 6" X 1", 1 Pound

It was a replacement for a walker, it does it's job

I bought the wheels to replace the cheap plastic wheels on my Coleman cooler. I like the cooler, but dread using it due to the cheap wheels. Now the cooler rolls smoothly and is much easier to navigate.

We have a Karman Ergo Flight ultralight wheelchair for my wife, who weights 105 lbs. The front casters needed replacing so I ordered these. These are dangerous and should not be used or sold for use with the ultralight wheelchairs.Why? The original casters have a rounded profile if you look at them edge on (perpendicular to the axle). These casters have a flat profile. This turns out to make all the difference in the world. These casters will catch and stick on steps as small as 1/4 inch. We have 1/4" threshold strips between our kitchen floor and hardwood hall floor, and my wife threw herself forward out of her wheelchair trying to get the chair to go over that tiny bump. She often had to make multiple attempts to get over the 1/4 threshold between our hall and bedroom going forward. 1/2 inch steps in sidewalk pavement are impossible - I tipped her forward dozens of times pushing her on sidewalks.On the Ergo Flight, the problem is made worse because the front casters are on forks that place them fairly far back from the front of the wheelchair, and because the wheelchair is so light. The result is that the center of mass of the chair + person is quite high, and too close horizontally to the front axles, so that it becomes extremely easy to tip if the front casters jam.I have replaced these with rounded profile air-filled casters, and we can now go over any reasonable size bump without a problem.These should not be sold and should not be purchased. They are extremely dangerous and Karman should replace them with rounded profile casters - like those that are on the original wheelchair. Someone goofed here in a big way.

Fit like it should, no issues.5/16 axle size for these

I installed these on my wheel chair. They lasted about 2 months before the bearing started making noises and needed replaced. Went back to the original casters. Not worth the cost savings to buy cheap ones that wont last.

Exactly what I needed for a portable chop saw stand.

I keep asking them to put it in the chair I am disabled and can't bend over. On top of that the item is gray and is not square like the picture is. I bought one just like it but it is perfect but this one is gray and round and not square like the other one and the other one is also 1/8 taller than this one

These casters fell apart in 2 weeks of light use along my local sidewalks. Taking the dog around the block for walks once each day tore these up so bad I had to order a different set from another manufacturer.