Extended-Type Round Flange Linear Motion Bearings

The LMF…LUU series is the extended version of the standard LMF…UU flanged linear bearings. Featuring a longer bearing body and increased ball circuits, this design provides greater load capacity, improved guiding stability, and longer service life. The round flange structure allows for simple face-mount installation, making it ideal for compact machinery and precision linear motion systems.
These bearings are designed for use with hardened and ground linear shafts, providing smooth and accurate motion with minimal friction.

Description

Product Overview
The LMF…LUU series is the extended version of the standard LMF…UU flanged linear bearings. Featuring a longer bearing body and increased ball circuits, this design provides greater load capacity, improved guiding stability, and longer service life. The round flange structure allows for simple face-mount installation, making it ideal for compact machinery and precision linear motion systems.
These bearings are designed for use with hardened and ground linear shafts, providing smooth and accurate motion with minimal friction.

Key Features
Extended Design for Higher Performance
The LUU long body provides more rolling ball tracks, offering higher rigidity, improved load distribution, and enhanced stability during long-stroke or high-speed motion.
High Precision & Low Friction
Precision-ground raceways and GCr15 steel balls ensure smooth movement, low noise, and excellent repeatability.
Easy Installation with Round Flange
The round flange housing enables straightforward mounting onto machine plates or frames without additional brackets.
Durable & Long Service Life
Heat-treated bearing steel and strong sealing ensure high wear resistance and reliable performance in continuous-operation environments.
Multiple Sizes Available
A full range of standard diameters and lengths supports use across various linear automation applications.

Typical Applications
The LMF…LUU extended flanged linear bearing is commonly used in:
CNC routers, milling machines, engraving machines
Automation equipment & pick-and-place systems
3D printers & laser machines
Packaging machinery & cutting machines
Textile machinery & precision instruments
DIY mechanical projects & linear modules

Why Choose Our LMF…LUU Series?
High-precision machining with strict QC inspection
Hardened GCr15 bearing steel for durability
Smooth operation with long bearing life
Available in a complete range of metric sizes
Support for custom lengths and OEM manufacturing
Cost-effective linear motion solution for industrial and personal projects

Additional information

Available Sizes

LMF6LUU, LMF8LUU, LMF10LUU,LMF12LUU, LMF13LUU, LMF16LUU,LMF20LUU, LMF25LUU, LMF30LUU,LMF35LUU, LMF40LUU, LMF50LUU,LMF60LUU

Material Composition

Outer Cylinder (Bearing Sleeve): bearing steel GCr15 / SUJ2 / 100Cr6, hardened to HRC 58–64 for excellent wear resistance.
Steel Balls: Precision chrome steel balls GCr15, grade G10–G40 for smooth motion and long life.
Ball Retainer: High-strength polymer PA66 / POM for low friction and quiet running.
Seals: NBR or reinforced POM for dust protection and extended durability.
Flange: Aluminum alloy AL6061 / AL6063 or carbon steel (model dependent), offering strong rigidity and easy mounting.

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