CNCCANEN Linear Rail Guideway SBR12-1200Mm 2X SBR12 Fully Support 4X SBR12UU Bearing Block Slide Shaft Rod Guide For CNC Review

I needed slightly different lengths. But they were ordered back so I took the shorter ones and linked them together, the transitions are fluid.

Really good guide for my 3D printer. Hard enough. I only have supports at the ends. With this product I solved my hot bed leveling problem. But one of the bearings is making strange noises. Scratchy click. That's the only reason for 3***

First of all, for all the people who think that they are buying high precision CNC parts, you are kidding yourself. There's a reason they're a quarter the cost of parts from Avid CNC or other well-known brands. They are cheap for a reason and should be treated as such. So if you want ultra-high quality, quality-assured engineering parts, buy them. Otherwise stop complaining. These rails fit my needs and the bearings are pretty crappy but for my needs I'll get them working. I also knew what to…