HGR20 Linear Guide Rail kit 2Pcs HGR20 400mm Linear Slide Rails and 4Pcs HGH20CA Linear Blocks Bearing Block, Anti Rust and High Precision CNC Parts for Automated Printer

I put these under my chair in my office. I use a living room type recliner at my desk, so it allows the chair to move. Of course, it called for a bit of fabication to mount them. This is my 2nd set of these, did the same to my wife's chair.

I have ordered two sets of these and they work great and are of good quality. I wouldn't hesitate to order these again.

These rails were packaged OK but, I would rather have had them packaged in stiff cardboard tubing. As far as quality, these rails and rail blocks are of high quality. Everything was packed in plastic bags and completely oiled for protection. The rail blocks are separate and with a special ball retainers for easy installation. The blocks run smoothly on the rails and have no noise and no play at all. I like the fact that there are two blocks per rail. Excellent job. 5 stars.

The bearings are pretty loud even when lubricated. Mounting was easy. Each guide rail on the 1000mm has 15 screw holes so 30 in total but you only get 15 screws. The threaded hole for grease fitting is plastic so easy to cross thread if not careful. Not a bad item for the price.

I bought these rails but when they arrived they were a bit larger than I expected and planned on returning them. These are HGH carriages and not the MGN type so they are much more robust. I am not going to return them and hold on to them for a future project. They are smooth and robust.

Rails are pretty good overall. Main gripe is that the orders do not contain all the screws needed to fill every mounting hole in the rail. Have to purchase additional screws to fully assemble

Great Fit. Arrived from China in 10 days. thanks

I needed these to fix a machine! Arrived in good condition!