VEVOR Linear Rail Slide SBR20-1800mm 2 PCS and 4 PCS SBR20UU Slide Blocks Linear Guide Rail and Bearings Kit for Automated Machines DIY Project CNC Router Machines

These work fantastic. Very smooth movement. Arrived straight.

Robustly made, sturdy, holding up well so far in my shop where there’s significantly metal dust.

I'm happy I stumbled upon these. Building an under RV storage tray and these will work perfect. Also going to use these for my router sled in the shop.

You adjust the side screws

I can’t tell if this was already used or was destroyed during shipping due to the terrible packaging. Bearing block has a plastic insert that hold in the bearings that didn’t survive the trip. I’d like replacement bearings so I don’t have to ship these big heavy rails back. They dinged up but usable still but I don’t see that is an option

Solid, straight, heavy and sturdy. If the rails are supported at both ends and put under load, they will flex vertically a few mm in the middle. So, to state the obvious, they do need to be fastened to a flat , robust surface. Horizontal motion is near 0. The bearings are adequate, they move smoothly albeit with some noise. Time will tell how reliable the bearings are. For the price these are very good quality and I am happy with the purchase.

Einwandfrei

Qualité du produit, conditionnement soigné, livraison rapide