LM linear bearings are one of the most popular professional bearing types used in CNC machines.
For CNC machines, 3D printers and laser engravers, linear bearings of the following sizes are often used: LM6UU, LM8UU, LM10UU, LM12UU, LM13UU, LM16UU, LM20UU, LM25UU, LM30UU, LM40UU, LM50UU.
In the table you will definitely find the dimensions of the LM8UU bearing – a common bearing among those who like to assemble a 3D printer with their own hands.
Linear LM Bearings – Dimensions and Specifications
(click to zoom)
Linear bearings (ball bushings) of closed type are used in general mechanical engineering for easy and smooth movement of carriages, platforms and other mechanisms along cylindrical guides