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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.
Specifications
Product Name: Linear Bearing
Package Content: 12pcs x Linear Bearing
Material: Carbon Steel, Rubber
Color: Silver Tone
Weight: 160g
Model: LM8UU
Outside Diameter: 15mm
Inside Diameter: 8mm
Length: 24mm
CyFire
Reviewed in the United States on January 6, 2025
By themselves these work well. However, these are pressure fit bearings, that don't hold up under pressure. As soon as I put them in the printer they collapsed. The rod would no longer fit and one just exploded out it's guts. If they do not work in the environment they were made for then they are a complete waste of time and money. Look elsewhere.Unfortunately I did not use them until I was out the return date so I am out what I paid for them. Again I suggest you buy another product.
Nancy Brown
Reviewed in the United States on January 23, 2025
These bearings are a perfect replacement for those on my MK4S. I will purchase again, if needed. Recommend you do the same.
A. Roberts
Reviewed in the United States on June 26, 2024
Easy replacement for my Prusa i3 Mk3.
jon
Reviewed in the United States on March 11, 2024
Works great
William
Reviewed in the United States on March 1, 2024
these roll moderately okay. They have really small ball bearings and are little noisy. I probably just need to add Grease. Not complaining for the price
Amami
Reviewed in the United States on July 18, 2022
I used it for a 3D printed thrustmaster throttle mod. Snapped right in. The throttle is nice and smooth now.
NerdyPhysicsGuy
Reviewed in the United States on January 18, 2021
I bought these to replace a few worn-out bearings on my Prusa i3 MK 2.5 printer. Thankfully, I only needed a couple, since these bearings are very inconsistent.Out of the 12 I received: 1 felt tight and ran rough on the smooth rod. 4 felt very loose and had considerable play. 7 were of passable quality--they moved smoothly but still had a bit of play.I tested these on a brand-new linear rod and made sure to roll them back and forth to break them in. For reference, I also tested several original bearings from my printer, and they fit almost perfectly with virtually no play, which should rule out tolerance issues with the rod.I installed these bearings as a temporary fix to get my printer up and running again. I only needed to replace some Y- and Z-axis bearings, so it's a good thing I didn't need all 12. I packed them with grease for good measure. After getting everything put back together, I immediately noticed that the axes I replaced bearings on were considerably louder than before.In addition, I could hear rattling when the printer made certain movements. I also noticed that the print bed wobbled a bit more than before, possibly due to increased bearing play. It was an acceptable amount (barely visible, but I could hear clicking when I pushed it back and forth) but more than I remembered with the stock Prusa bearings.Despite all this, I haven't noticed any major differences in print quality. Perhaps more precise prints will show a difference, but performance is acceptable for my purposes. These bearings (at least the ones that worked) will probably be fine for the time being. However, it is disappointing that only a little over half the bearings in a pack of 12 are usable.
Mark M.
Reviewed in the United States on April 16, 2021
Had a musimi bearing go bad within a month. Prusa is sending me more, but I wanted to get the printer back up and running and one of these bearings is working fantastic so far. They are cheaper than musimi, even being carefull I destroyed one by knocking out 4 balls without feeling them come out, so be very careful when packing grease and putting onto the rod. Second one went on without a hitch and is completely silent 2hrs into a 18 hour print. Works fine as a stopgap until the official ones arrive. glad to have spares too.
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