Top Rated in Linear Motion Products

Compare the most helpful customer reviews of the best rated products in our Linear Motion Products store. These products are shortlisted based on the overall star rating and the number of customer reviews received by each product in the store, and are refreshed regularly.

Top rated products in Linear Motion Products

4.7 | 174 customer ratings
94% of the ratings are 4-stars or 5-stars
I have tested several rods using a dial indicator to check for straightness. I use the HF digital dial indicator on a magnetic stand. The key to getting consistent results is to have a follower that rides on top of the rod so that minor xy position error does not affect the dial indicator reading. I use a piece of glass as it provides
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By Mark B
Used these to build a rock tumbler. Couple 3D printed pulleys and a little welded frame and it was running in no
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By Gregory Curtis
Bought these to replace the awful rods that came with the Anet A8 plus. Great straightness and surface finish. Worked very well and do not any grooves where the rolling elements make contact after 100h like the Anet rods
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By Krestoverson
4.6 | 172 customer ratings
91% of the ratings are 4-stars or 5-stars
My first purchase was a cheaper hub that had set screws on opposite sides of the central sleeve and no set screw in the flange part of the hub. The problem with this is that the set screws bear all of the force of keeping the hub from spinning on the shaft, and there are precious few threads against which to distribute that
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By Todd
Are you trying to build an drive-train of some kind but are struggling to figure out how to connect your small electric motor to the beginning of your drive-train? This is what your are looking for. Well, that is, if your motor has a 6 mm drive shaft on it. If not, you should probably, just go to the Pololu website and order from the
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By John Roper
Arrived on time, as advertised and in good condition. The set screw is a little weak and the quality of the Allen key is not the best. Overall would
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By Arthur Deco
4.6 | 134 customer ratings
91% of the ratings are 4-stars or 5-stars
These were perfect for my home-built 3D printer (shown in photos above). No complaints about the accuracy or straightness. If you are looking to replace your threaded rods or looking to build a 3D Printer, these will do a great
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By Blaine A. Edwards
Came packed well in a sturdy cardboard tube. Used them to upgrade my Ender 3 to a dual Z setup and I wanted to make sure the screws matched. I've done a bit of printing and it seems like everything is good. The screws do have a little bit of movement so I can tell they're not perfectly straight, but it's not a bunch and doesn't seem to
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By Jason Cook
These lead screws arrived well packaged in a cardboard tube. Perhaps a little packing inside the tube to keep them rattling around might have been nice. Both lead screws were straight with no bends, at least not to my naked eyes when mounted in a hand drill and spun. Each end has a slight chamfer ground onto them to make installation
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By Babblefish
4.5 | 339 customer ratings
87% of the ratings are 4-stars or 5-stars
Excellent Quality worked perfectly to put tubeless COSCO Tires on my wife's cheaper garden cart.

We've had a COSCO 4-in-one hand cart for years...and other cheaper "carts" like garden carts or etc seem to always have tires with tubes that go flat (it sucks). And it is a pain to go get new tubes, which then those do not last
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By TEKnight Rider
I did not like the stickers but with a lot of wasted time and effort and patience the purchaser can make this company's product useful again.

I have to give to their design engineers these stickers are robust. They take several minutes to remove so you can use this companies wonderful
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By masReader
I bought this for my go kart that I built from scratch. This was the most important and final piece of this whole thing so I was very excited to get it after all the other components arrived. Once it came to assembling everything, I came across an issue. None of my sprockets fit. At first I thought I ordered the wrong size shaft, but it
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By JBarbot
4.8 | 34 customer ratings
95% of the ratings are 4-stars or 5-stars
Very nice Extrusions, quick shipping and good
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By Ted F
They were perfect for my purpose. The specs were
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By RobDa
I haven't any bad things to say about this extrusion material well balanced and perfectly
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By Greg Bruce
4.6 | 63 customer ratings
92% of the ratings are 4-stars or 5-stars
Used it to make modifications/additions to provide more mount points for extruder motors, and electronics. Also gives better options for cable
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By Mike G.
Clean, straight 2020 aluminum. No dents or damage. All consistent correct length too. No
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By James R.
Garbage. These are by far the softest 2020 I’ve ever come by. I used a hacksaw after making some pilot cuts and I’m still on the same saw blade with almost no wear. The black coating is absolute trash...imagine a kid in the garage with a can of matte black spray paint; the paint rubs off on your skin it’s that bad. The packaging was
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By McPhister
4.9 | 26 customer ratings
100% of the ratings are 4-stars or 5-stars
I like these rods better than the one the printer came
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By Greg Bruce
Straight with clean bevels on the ends. Great quality for the
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By Amazon Customer
These rods match the description very well. They are definitely within the listed specs -- I measured between 9.97mm and 10.00mm depending on where I was taking the measurement. I don't have a metric micrometer, so I could only use my digital calipers to take the measurement, hence why I cannot get a more accurate measurement than that.
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By GearFreak
4.4 | 129 customer ratings
83% of the ratings are 4-stars or 5-stars
I have torn my primary 3D printer down to replace the rails. These are not the cheapest rails available but they are certainly economical. They are very rough and packed with shipping grease from the factory. At first I thought they would be unusable.
Begin by spraying the entire rail and block assy with Brake Cleaner. This will
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By OldGeek
I used this on my Tevo Tarantula for the X axis. I had some trouble because I looked at the holes in the rail and thought they used the same M4 screw and T nut system that the rest of the Tarantula and virtually all 2020 and 2040 extrusions use. Plus, I saw no mention of any difference in the product info. So, I tried to get a M4 to fit
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By Ken Bessler
ordered 2 for my 3d printer. one barely moved at all, even when vertical. the other moved and would stick in the middle then move again if you shook it. I was less than enthused.

the consensus across the internet was "you get what you pay for" and "cheap Chinese rails wont ever work". still, I didn't want to just give up and
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By Neba
4.6 | 39 customer ratings
97% of the ratings are 4-stars or 5-stars
I ordered the 20mm rod just under 1m in length. This is nice hard, chromed shafting. I mic'd it out and it was perfect, though I did not go crazy measuring the rods, they work very well with my LM20UU long bearings. I really like the cut to length option. The ends are not turned, but arrived nicely cut with what looks like a cooled
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By Candy Lover
Bought these to replace my stock rods on my Anet A8 as the X and Y axis had become horribly noisy at printing speeds, with grinding and squealing, even after lubrication. These rods were a direct replacement, and after cleaning and relubing my stock bearings (the replacements I bought were trash), I have no more noisy X and Y axis. These
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By Nathan Frith
This is a custom cut to order hardened ground rod with a beautiful surface finish. Although it's designed for linear motion, the rod can be used for other purposes. I used it to measure the true-ness of my lathe. For that, I used the 20 mm diameter. I think it's a very good value for such a finely finished part.
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By Bruce Labitt
4.9 | 20 customer ratings
100% of the ratings are 4-stars or 5-stars
Ordered 4 of the 12mm for the Z axis on a corexy build. Having different precut choices make it easier to plan since this makes it a one stop shop for all the linear rods I need. Ordered 2 more of the 10mm for the Y axis.

The linear bearings glide smoothly without any binding or bumps along the
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By Makie
The rods look smooth, seem to have great quality and they arrived fast, the bore what as
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By Andres Palacio
These linear rods came smooth and straight. Their dimensions were accurate from 0 to -0.02mm. Time will tell how long these last, but they have a good weight and feel like good quality. The ends came chamfered and there appeared to be no defects the entire length of the rod. I've been seeing good quality from FEYRINX and will continue
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By Mel
4.7 | 29 customer ratings
96% of the ratings are 4-stars or 5-stars
Perfect
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By Amazon Customer
These linear motion rods are smooth and accurate to 8mm at +/- 0.02mm which in my opinion is great! When putting bearings on them, the bearings ride smoothly and don't get caught with almost no play. In the short time I've used them, I believe they will
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By Mel
I've been getting into CNC and have several projects for these rods. They are smooth and straight with a great finish. The length will be nice for bigger projects.

Very happy with these linear rods and would gladly
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By Ron Killian
4.9 | 19 customer ratings
100% of the ratings are 4-stars or 5-stars
just as expected. I had bought a kit from another vendor and the only sent 3 and they did nto match. Ordered these as a replacement and wish I had ordered these
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By Dyna Dave
Good product at a good
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By Captkid1
works good i like
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By Ronald g. Curenton
4.6 | 35 customer ratings
89% of the ratings are 4-stars or 5-stars
Working great as y axis rods on a modified cr-10. Much stiffer than the usual
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By Matthew G.
Happy
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By Amazon Customer
I had purchased one previously thinking that this was a 2 pack, but it was not. I repurchased it and the next one had trouble with the bearings. The LM12UUs would not roll smoothly on it and get hung up. I even swapped parts around and tried 4 bearings to see if it was a bearing or rod issue and it turned out to be a bad
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By J. Burke
4.7 | 26 customer ratings
92% of the ratings are 4-stars or 5-stars
I was very pleased the the ballscrews and guides. I put together a very stout DIY CNC machine. I should mention though that the included aluminum couplings are very flimsy compared to the main parts of the product. I used them, but have so far now replaced 2 out of the 3 after having them break. I suggest not using
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By David G. Coleman
Packaging was excellent. No chance of any damage to the contents. This is a very complete kit. You're not going to want for much of anything.
I noticed that couplings (10mm X .250" checked with a micrometer) for the ball screws are included, wasn't expecting those. The rails are very big, 20mm, which is slightly larger than
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By T. Brooker
I ordered this set of rails and ball screws on Feb.9 with standard shipping. I received them on Feb. 16th. They were packaged extremely well, with ball screws and nut already attached. All items were lubricated and individually sealed. I'm still in the planning stages of building my CNC, so I couldn't put them into immediate use.
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By Mollikers
4.5 | 46 customer ratings
86% of the ratings are 4-stars or 5-stars
Straight out of the package it did not impress me. It was gritty, stiff, and inconsistent. But I watched a video about how to disassemble, clean, and lube the carriage. It took me a good hour, and after I was finished, the grittiness was gone, HOWEVER, there was still one spot on the rail where the carriage would stick about 70% of the
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By E. Burgess
Updated to five stars:
I am fairly sure the seller had no agency in which unit I was shipped, I simply ordered another one. The replacement showed up looking different from the first three units. So some minor deviation from one unit to the next is to be expected. This one came in a blue bag, with two rubber end stops in place so as
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By Jed Goudy
Bought these rails to upgrade my 3D printer. They worked great; my print quality has greatly improved. As with all linear rail upgrades, however, attention to details and getting your printer frame straight and square is key to making linear rails work smoothly and without binding. When properly installed, I believe these rails are
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By Retired EE Engineer
4.4 | 75 customer ratings
88% of the ratings are 4-stars or 5-stars
Was hesitant about buying these rails but saw some good reviews from others and decided to give them a shot. Glad I did. Absolutely no wobble, and while mine had a good amount of grease it didn't seem as crazy as some of the others. After a good cleaning with IPA they glide super smoothly.

The only down side was my particular
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By Eric R.
These rails are great once you tear them down, and do a deep cleaning. I spent quite a bit of time on taking apart and cleaning the bearing balls as well as the housing and rail.

I cleaned everything with isopropyl alcohol and mean green. Then while assembling I used super lube silicone grease on a screwdriver tip to aid
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By Justin
I bought two of these when another vendor that I typically buy from was out of stock. Well, color me impressed. VERY smooth actuation, even from the factory. So good, in fact, that I opted not to do a full disassembly / clean on these, and instead just ran a bunch of WD-40 through them before using some PTFE super lube.

Much,
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By capnote
4.5 | 41 customer ratings
84% of the ratings are 4-stars or 5-stars
Just as advertised. Delivered in a sturdy tube so the shaft would not be bent in shipment. This was professionally packaged and I really appreciated this. I am going to build a simple demo mechanism for my little grandson who loves mechanical items. I bought a hand crank for this one which fit perfectly. I will build a similar item
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By David L. Parnell
This is an 8mm lead screw, 4 starts, 8mm travel/revolution. Technically the pitch is 2mm, but that's only becasue there are 4 starts.

There's a bit of play in the nut, you may want to consider an antibacklash
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By Jeffrey Cote
This is a surprisingly good product for the price. The only improvement the seller could make is to include an anti-backlash nut, but you can acquire one on your own if it
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By Kyle
4.3 | 142 customer ratings
83% of the ratings are 4-stars or 5-stars
This has powered my duck’s coop door for a year now with no issues. Survived New England summer and winter without a hiccup. Only time I’ve ever had to pay it any attention is when it pulled it’s mounting screws out of the door. It’s not quiet or fast, but it’s sturdy and strong. Highly recommended. The ducks love to take turns
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By Herewego
Actuators work exactly like I
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By King
I didn’t realize this is intended to move solar panels. It’s an excellent replacement for our snowblower shoot. As others have noted, it’s very slow however… it’s very very very powerful and I can see if not installed properly it could twist and bend things very quickly so make sure you do your homework before you start drilling
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By DJ Bill T
4.5 | 39 customer ratings
93% of the ratings are 4-stars or 5-stars
I use these on the Z axis of my CNC machines. They hold the spindle very
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By Steve Renfrow
Worked for what I
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By Walt S.
Learn to package the product better and maybe you'd get more stars. I received an empty wrapper with a barcode on
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By Joe1234
4.6 | 27 customer ratings
95% of the ratings are 4-stars or 5-stars
One of the accuracy upgrade parts I added to my 3018 Pro when I rebuilt the Z axis. Much better support from these longer bearings. They fit my 8mm rods with almost no detectable run out. I'd recommend them if your upgrading the Z axis and spindle on one of these
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By David W Miller
Order arrived on time, as described and according to spec. If you're looking for a way to stabilize your 3d printer, cnc or laser engraver that utilizes the shorter lm8uu linear bearings, this is an excellent value for the
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By kbradsha
I used this for a replacement bearing in my 3018 CNC machine. It is longer than the original but has much less play or slack in it. It tightened up the Z axis quite
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By Walton Ussery