LMK12LUU Square Flange Linear Ball Bearing Set 12mm ID By 21mm OD By 57mm Length With Double Seal For Heavy Duty Smooth Motion In CNC Machines And 3D Printers Ideal For Linear Guide Slides 2 Pack
✔️ 12mm ID (0.472 in), 21mm OD (0.827 in), 57mm L (2.244 in)
This square flange linear bearing provides precise, smooth motion on 12mm shafts, commonly used in CNC machines and 3D printers. It features dual rubber seals to keep lubricant in and contaminants out, helping it handle dusty or humid environments.
✅ ID 12mm, OD 21mm, length 57mm (2.244 in), flange edge 32mm (1.26 in), thickness 6mm (0.236 in)
✅ Installation aperture 4.5mm (0.177 in), dynamic load 1230N
✅ Static load 2350N, bearing steel with high hardness
✅ Four-rows steel balls for high-precision motion
💡 What is a square flange linear bearing used for in CNC machines and 3D printers?
It provides guided, low-friction motion on fixed shafts with sealed protection.
- Supports 12mm shaft diameter for precise alignment
- Delivers smooth, low-friction motion for longer life
- Sealed to resist dust and moisture in dusty or humid environments
- Ideal for linear guide slides and automated equipment
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