The LMK 12LUU Linear Motion Bearing is a high-precision square flange linear ball bearing designed for smooth and accurate linear motion on 12 mm hardened shafts. It is widely used in CNC machines, 3D printers, laser machines, automation equipment, and industrial machinery where stable, low-friction movement is essential.
The square flange design allows secure and easy mounting on machine plates or frames, ensuring proper alignment and stable operation. The internal recirculating ball system provides smooth sliding motion, low friction, high load capacity, and long service life, making it suitable for continuous industrial applications.
Manufactured from premium hardened bearing steel, the LMK 12LUU bearing delivers excellent durability, wear resistance, and reliable performance in demanding industrial environments.
LMK 12LUU Linear Bearing Dimensions
Parameter
Dimension
Inner Diameter (d)
12 mm
Outer Diameter (D)
21 mm
Length (L)
30 mm
Flange Size (B × C)
42 × 42 mm
Mounting Hole Distance
32 mm
Mounting Hole Diameter
5 mm
Number of Mounting Holes
4
Key Features
Designed for 12 mm linear shafts
Square flange (LMK series) for secure and stable mounting
Smooth and precise linear motion
Low-friction recirculating ball design
Compact and durable for small-to-medium machinery
Long service life with minimal maintenance
Applications
CNC routers and machining centers
3D printers and DIY motion systems
Robotics and automation equipment
Laser cutting and small machinery
Packaging and printing systems