4.5 Inch / 114 MM Universal Nylon Bearing Pulley Wheel Replacement Compatible with Cable Machine Home Gym, Garage Door Pulley System, Weight Machine, Gym Equipment

I have these on hand in case I have any issues with my other pulley wheels. They seem pretty solid and well made and will be a good replacement for my home gym setup or any additions I might make.

hard vinyl wheels. bearings seem nice.I can't speak to their fitment cause I'm using them on a fabrication project. But they will work. Not cheap junk for sure.

These do have internal bearings integral to the pulley, and are rated at 1,000 pound weight capacity each.

didnt work for equipment

These pulley wheels are made for gym machines, such as lat-pulldown/low-row machines and others. It has a stated capacity of 1,000 lbs. max. I would not trust them with anywhere near that much weight. If used for the intended purpose, there is no worry. I doubt anyone can do seated rows or pull-downs with anywhere near that amount of weight. Whether or not it is vinyl coated and the thickness of the cable will affect its longevity due to the wheel's nylon constriction. I suggest a metal wheel for loads nearing the limit of these pully wheels when used for something other than in a gym machine. They are basic pully wheels, and the bearings are not exceptionally high grade; their resistance to spinning the indicator that caused me to think this. High-grade bearings have far less resistance than these. Their price is not the best bargain that can be found on Amazon.com either. Nothing is particularly wrong with them except that I expected them to be of higher quality or sold for a lower price. I suggest you do a little bit of looking on this site for a better deal.

Over the 2+ decades that I have owned my 'universal' machine, I have worn out several of the pulleys. These have of course required replacement and suich replacement pulleys can at times be somewhat tedious to find. This pulley fits my machine with its cables perfectly and will be an easy exchange the next time one wears out. The material is virtually identical to the pulleys already on the machine and the sealed roller bearing runs smoothly. Recommended.

I got these nylon pulleys from the the MiXiZigoz Store as spares for weight machines in our gym. They're nicely made, no burrs or sharp edges. The bearing runs smoothly. What more can you ask?