The LMK 40LUU Linear Motion Bearing is a precision square flange linear ball bearing designed for smooth and stable linear motion on 40 mm hardened shafts. It is widely used in CNC machines, industrial automation systems, 3D printers, laser machines, and heavy-duty machinery where reliable, low-friction movement is essential.
The square flange design allows secure and easy mounting on machine plates or frames, providing proper alignment and stable operation. The internal recirculating ball system ensures smooth sliding motion, low friction, high load capacity, and long service life, making it ideal for continuous industrial applications.
Manufactured from premium hardened bearing steel, the LMK 40LUU bearing offers excellent durability, wear resistance, and dependable performance even under heavy industrial conditions.
LMK 40LUU Linear Bearing Dimensions
Parameter
Dimension
Inner Diameter (d)
40 mm
Outer Diameter (D)
62 mm
Length (L)
79 mm
Flange Size (B × C)
90 × 90 mm
Mounting Hole Distance
70 mm
Mounting Hole Diameter
9 mm
Number of Mounting Holes
4
Key Features
Designed for 40 mm linear shafts
Square flange (LMK series) for secure and stable mounting
Smooth and precise linear motion
Low-friction recirculating ball design
High load capacity and durability
Long operational life with minimal maintenance
Applications
CNC machines and machining centers
Industrial automation systems
3D printers and laser machines
Packaging and printing machinery
Robotics and heavy-duty motion systems