Customer Reviews for VEVOR Linear Rail Slide 2PCs 20mm x 1000mm Linear Bearing Slide Set with 4Pcs Block Bearings SC20UU+4Pcs Shaft Support Linear Shaft CNC Parts Kits for Electronic Equipment Guide Bar

Build a circular saw crosscut sled with these. They glide smooth, don’t rack, and somehow the sawdust doesn’t affect them (yet? But if so in the future it’s likely my fault and I’ll need to clean and grease). The picture is from the work in progress building, but my review is based on my experience after building a couple cabinets and using them for a bit.

The rods are solid and quite heavy. The blocks move very smoothly with no discernible play. I made a router sled with 2 pairs of these. My only concern is that there was a little bit of sideways twisting when the router was near the end of the rods. It did not really affect the router's perfotmace.

Smooth and well put together.

The flex on theseMake making no good to build a router sled with them I know it's not what they were meant for but they at least should not have had as much bow in it as it did for the kind of steel it is. Definitely will be purchasing the one that has the underlay in it to help keep it more stern and sturdy.

Made a router sled with one pair of these , another pair of the ones with a base, and three pieces of acrylic. Works great. Strong rigid rail rods. Surpringly good value.

This unit came As advertised. Cant wait to use it check it’s tolerance and smooth working .the standard measurement of the slide bearing set needs to better advertised due to the other units are not capable of being used on longer units from the same company.

Works perfectly! Saved a lot of money! I couldn't have built a better router sled. I would definitely recommend.

Used these to create my own flattening table for my wood working. Even with the saw dust the guides slide effortlessly.

Seems to be a great product. Very smooth, precision machined linear rails. I got them for mounting a router to the band saw mill carriage for flattening slabs.

These are not to bad for the money, however the bearings have more slop than they should. I would think you should not be able to feel any slop but there is some and there is no way to adjust. For my purposes this is not a problem but be aware of the looseness. And the mounting threads are not tapped very deeply - plan on chasing the threads (M6) and deepening them if you want to use decent-length screws. I like long screws in aluminum. The hole is the right diameter for tapping deeper, no drilling needed. Like I said - they work fine in my app and might in yours too.