LM12LUU Linear Bearing Expand

Linear Bearing Long - LM12LUU - 12mm Diameter



This LM12LUU linear bearing provides low friction motion along a single axis 12mm shaft. Generally used on 3D printers and CNC machines for accurate linear carriage systems.

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R 89.95

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If you are making a CNC router, mill or lathe requiring precise linear motion, this LM12LUU bearing can be used to attach a motion carriage onto a railing without adding too much weight or cost. It is intended to slide along an 12mm linear shaft rather than rotate around it, and provides less slop or friction when compared to bushings, resulting in less wear and smoother more precise motion. There are two rubber seals on either end to prevent debris or contamination of the ball bearings

For optimal performance, use white lithium grease, tri-flow or 3 in 1 machine oil for lubrication. Do not use dry lubricants, PTFE-based greases, or thick high temp greases like wheel bearing grease. These might stop the bearing balls from rotating. Spray lubricants are also not recommended.

Technical Specifications



Number of Ball Rows


Dynamic Load Rating

657 N

Static Load Rating

1200 N

Inner Diameter


Outer Diameter





12mm Linear Shaft or Rail


80 g

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