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Your cart is empty.Introduction of Linear Bearing 1.Made of Carbon Steel material, Double Side Rubber Seal Linear Motion Ball Bearing Bushing. 2.Great for linear motion on 3D printer, cnc, and other applications. 3.These ball bearing are fitted with two rubber dust sealed to prevent ingress of dirt, water and foreign matter. 4.Bearings may require lubrication and break in period. 5.Smooth moving, low friction, high rigidity and long life. Economical, easy to maintain replace.
Abbie Hupp
2025-08-20 21:10:51
Great price, great purchase
Rat
2025-06-01 11:06:04
I broke one of the new bearings when assembling the printer so I purchased these as a replacement. You can feel a difference between the originals that feel more qualitative compared to these bearings but the one I replaced it's on for about 6 months and had no issues.
Ryan M.
2025-05-28 15:47:28
Well, you honestly get what you pay for. Do they work? Yes. Do they work well? Define well. But honestly, for the price of less than 1 THK LM8, you really can't complain. So great for the money. I needed 6 for my project so I have a second set. That would have cost me $180 for genuine THKs.
Craig Soldani
2025-04-15 16:35:34
It’s much smoother now and the prints are cleaner. You can hear the ball bearings rolling around and my plastics bushings were quieter. But with all the fans you dont hear it that much louder. I took it apart and put a small amount of grease in it. I hope the seals on the ends dont drip. I’ll edit this comment if I see a problem, but it did quiet it down a little.
Gc
2025-03-15 16:14:10
The size is just right for my project. I was able to fit a 6mm rod right through. There is a slight lube on the outer shell. The tube has line etch on both sides in case you need to mount the bearings on the sides. I tried some slightly larger rods. Some of the balls fell out. Maybe I was too rough. Just something to consider if you are planning on putting it under stress. The 6mm means the diameter of the rod that you will be pushing through. I wish they provide all the measurements in the photos such as the outer diameter, the padding in between, and the length of the cylinder. That would save me the trouble of making the measurements myself.
Dave in Texarkana
2025-03-04 10:41:58
Fair price for the quantity (though I only needed half that amount). They appear the same as what's in my Prusa Mk4.
Elmo
2025-01-09 18:09:48
there is quite a bit of play in the bearings. they could still be used but they aren't very precise.
Terry
2024-12-31 20:56:54
I got these to use in a 3D printer and they work really well for this. I do not think they would stand up to having a large amount of weight placed on them and they come caked in grease or thick oil that gets every where when you take them out of the bag they come in.Originally looking at the image I saw for these they looked like the flat kind of bearing and I had another machine that uses that kind but I must of just saw the top or side view because when they came they were the long roller bearing bushing type. I can still use them but I was hoping for the thin round type and not these.Not sure how well they will hold up because you can see that they are not sealed and the ball bearings inside could come out. I don't really want to have to oil these which these you most definitely will have to for maintenance. I prefer sealed bearings for that reason.
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