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Your cart is empty.Product Description
- Linear motion bearings provide freedom of movement in a single direction.
- Often used in conjunction with cylindrical shaft or rail.
- The steel ball is in point contact with the shaft and rotates with very little frictional resistance, so as to obtain smooth movement with high precision.
Linear Ball Bearing Motion Slide Units
- Grease may be applied prior to use to improve smoothness.
- Maintain lubrication of optical shafts and guides during operation.
- The recommended load is 80% of the rated load, exceeding the rated load will affect fluidity.
- The table needs to be level during installation, otherwise it will interfere with installation calibration.
- Require regular cleaning and maintenance.
Linear Motion Bearing
X-Y tables, linear stages, machine slides and other advanced slides use linear motion bearings to provide movement along both X and Y multiple axis.
Applications
- Replacement of parts of the 3D printer rail unit.
- Replacement of common machine tool guideway components.
- Laser (engraving machine) rail set-up and parts replacement
- Construction and replacement of small planing machine tables, carriers, rails and parts.
- Mechanical Slides
- 2-axis, 3-axis Benches
- Linear Stages
AJ
Reviewed in the United States on January 26, 2024
Attempted to use this to replace parts in my 3D printer, but the first set of bearings fell apart, and the second grinds so badly that it scratches the shaft. I then opened a couple of the remaining bearings in the set and all have so much slop and play in them they are unusable.The material is steel and plastic, there is no rubber. The seals are hard plastic and easily fall out. the tolerances are terrible.Not even going to bother to return them, they are already in the trash.
Yannick Morand
Reviewed in Canada on March 4, 2021
Out of 10 only 3 were working great, and 5 working fine and 2 were not working at all. Very rough movement on the rod.
Kristen oliviera
Reviewed in the United States on June 7, 2020
White lithium is not the ideal grease for these bearings, you want something as thick as possible, preferably with moly in it.You need to be careful when packing these that you get all the air out and push the rod straight in. If there is even a little angle as you slide the rod in you will catch some balls on the sharp edge of the smooth rod and push them straight out. Doing it this way and stopping whenever I felt resistance then re-aligning I only had 1/20 go bad on me. These are not high load bearings, twisting them with you hand and feeling the balls bind up is not a fair test.Let me tell you, the 19 that I successfully packed are dead smooth. Sure there is some play, these are not $15/piece lightly pre-loaded NDK bearings. Sure if you pack them incorrectly you will dig some balls out, these have plastic retainers and not metal. If you are looking for pre-loaded bearings with metal retainers you need to look elsewhere.However, these are perfect for 3D printing.
Jonathan Narvaez
Reviewed in the United States on March 30, 2020
8 of 10 ball bushings were rough after greasing, unusable. Only 2 rolled under their own weight of the smooth rod. I need to replace 3 on my printer and could only do 2. One bushing was out of specification and had a lot of play while on the rod. I expected low quality, but this was very disappointing. I might covert the rods for rails.
matthew
Reviewed in Canada on February 24, 2020
like it
Tigidou
Reviewed in Canada on November 23, 2020
NCN
Nikolay I Ivanov
Reviewed in Canada on November 20, 2020
Out of the entire package, there were two good ones, the rest were garbage.
Jennifer Gomes
Reviewed in the United States on January 12, 2019
This is my first shipment, and of the five bearings I have used so far, all are working fine. The ones I received were all shipped completely dry - no rust oil, no grease; so, if dry fitted to rods it is likely some of the balls will fall out. The ball races must be filled with Lithium based grease. And, the grease should be forced into the races, not just slathered or squirted on the surface. This can easily be done by squeezing a blob of grease into the passage, and then carefully insert a rod into both ends, and slowly press the rods together. Repeat until grease oozes out both ends of the bearing, indicating the races are full. Hope this helps.Steve
Noel Gonzalez
Reviewed in the United States on February 18, 2018
These are pretty good bearings. They fit the 8mm smooth rods well. My only reason for not giving it a full 5 stars is that the little ball bearings inside will easily fall out if you are not careful when sliding the rod in or out. If you don't loose a ball, they are not to difficult to put back in.
D. Miller
Reviewed in the United States on February 22, 2017
I wasn't sure what to expect out of these bearings for the price but once they arrived and we started using them for our robot project they worked really well. Nice and smooth, a little bit of noise but overall a very good bearing for the price.
Isaac Friesen
Reviewed in Canada on June 1, 2016
Very good product very pleased
David B.
Reviewed in the United States on August 4, 2015
Overall the bearings were pretty good considering their low price. They aren't the smoothest, but you cant expect them to be amazing at this price point. The biggest issue I ran into with these was that on two of them the little ball bearings fell out as soon as I inserted the linear rods, making them unusable.
Ken Bell
Reviewed in the United States on April 22, 2015
I just got these so I could build a 3D printer I was designing. These things seem rather low quality and catch a lot on linear rods I have. And its not the linear rods issue since some linear bearings I got with my PrintrBot glide just fine without catching.Do not get these unless you have very good alignment and a strong drive motor. But really, they arn't good enough quality for me to ever recommend.
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