SBR-L linear bearings are popular professional types of bearings used in industrial CNC machines and other equipment.
For CNC machines, 3D printers and laser engravers, linear blocks of the following sizes are often used:
SBR10LUU, SBR12LUU, SBR16LUU, SBR20LUU, SBR25LUU, SBR30LUU, SBR40LUU, SBR50LUU.
In the table you will definitely find the dimensions of the SBR20LUU bearing – a common bearing among those who like to assemble a CNC machine with their own hands.
Linear Bearings SBR-L/SME-L (Long in Housing) – Dimensions and Specifications
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Linear bearings (ball bushings) or bearing blocks are used in general mechanical engineering for easy and smooth movement of carriages, platforms and other mechanisms along cylindrical guides.
Bearing type SME-L differs from SBR-L by the presence of locating plates.