Some of the modern and popular are linear bearings LMF and LMK, because these are professional types of bearings used on 3D printers and CNC equipment.
For CNC machines, 3D printers and laser engravers, linear bearings of the following sizes are often used:
LMF6UU, LMF8UU, LMF10UU, LMF12UU, LMF13UU, LMF16UU, LMF20UU, LMF25UU, LMF30UU, LMF40UU, LMF50UU.
А также LMK6UU, LMK8UU, LMK10UU, LMK12UU, LMK13UU, LMK16UU, LMK20UU, LMK25UU, LMK30UU, LMK40UU, LKM50UU.
ВIn the table you will definitely find the dimensions of the LMF10UU bearing – a common bearing among those who like to assemble a 3D printer with their own hands.
Linear bearings LMF and LMK (with flange) – Dimensions and characteristics
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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.