Linear Rails and Bearings Kit, Including 2Pcs SBR20 2000mm Long Fully Supported Shaft Guide and 4Pcs SBR20UU Linear Bearing Slide Block X Y Z Linear Actuator for CNC Equipments

Exceptional Linear Rail Kit, smooth and precise. I used this with a SpecTool Router Sled Kit. These rails precisely fit together with this sled and perform excellently. I'm very impressed with the rollability of these rails. They are smooth and durable. Overall construction is superior and resulted in a very professional router sled for my use. I am more than pleased. I did contact the seller with a couple of questions, and they quickly and accurately responded. It was a very nice experience. Highly recommended! These are an exceptional value for their high build quality and customer support.

These did what they claim they do. No issues with these so far, at all. So I ordered more as I have many uses for them.

Great rails but with just a little bit of flex. I used these for a router sled. There were two drawbacks. The first was hunting for the correct screw size of the holes on the mounting blocks. (Metric6 by the way) The second if a little bit of flex in the rails. For a full size router I may have to go back and add some steel underneath the rails so they don't sag.

I’m in the process of building my own router sled, and after watching some videos and doing a little bit of research these CNCMANS linear rail kits. I purchased the 1000 m and the 1500 mm lengths or about 4 foot and 5 foot for my kit. One delivered only the 1500 arrived, but it indicated that both had been in the same package. I reached out to Amazon and to the seller and the service provided by the both was outstanding. I provided information the seller requested and within a week I had the other set delivered. The material is extremely sturdy and will work really well for my router sled when I get it constructed. The ball bearing slide really easily and I also purchased some additional items to help with dust collection. I couldn’t afford the $800-$1000 or more for a packaged kit so this set will cost me less than $200 and some time. If you’re looking for something like this, I really encourage you to go with this seller. The service is great. Like outstanding. The material is top notch and I’m really looking forward to getting to work!

Installed these rails on my concrete plasma machine and so far they work s long as you make sure that no debris get into the bearings.

Used to build goose house opener with 18" lift, holding the two sides of big sliding doors in place. Initially, I tried to buy 1 inch U channel, but those rails are cheaper, stronger, and smoother.

Product was fine, but I am missing the end alignment dowels which wasn’t a big deal because I am not in a rush. Reached out to the manufacturer for resolution with no response. When you purchase anything a big part of quality is support. That’s why they received one star.

Good quality, great buy