Customer Reviews for VEVOR Linear Guide Rail Set, SFC20 1200mm, 2 PCS 39.4 in/1000 mm SFC20 Guide Rails 4 PCS SC20 Slide Blocks 4 PCS Rail Supports, Linear Rails and Bearings Kit for Automated Machines CNC DIY Project

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.

Bought this to make my own router planer sled using scrap wood for the linear rail seats and starboard for the router plate I have planed (1) piece of red cedar and it worked great. Built it for approximately $110 from Vevor in about 2 hours vs buying one for $475

second pair was fine. Solid steel (I presume) bars. At $40 - I definitely recommend.

Good product but could use better packaging. Do to the weight shipping is damaging to the box. Other then that everything worked as it should. Nice and smooth nice update for the router.

Loved these rails. Used them to make my wood leveling sled. They are very solid. Very robust. If anyone is wondering what size screws the linear bearings use, they are M6x 1.0 thread pitch. Would highly recommend these. Hope this review helps.

Used for router sled

Really a great price

Everything super!Super fast delivery and all parts in perfect condition!Thank you!

These things are strong, great glide and smooth.

This is really heavy duty and the slides are smooth. Purchased this to make a wood routing duplicator. Project not finished yet but this will be perfect!