LMF12UU Linear Bearing 12mm Round Flange Linear Motion Bushing for CNC Machines 3D Printers and Robotics
The LMF12UU Linear Bearing is a 12mm round flange linear motion bushing engineered for smooth linear motion, high precision, and durability.
- LMF12UU linear bearing 12mm is a high-precision round flange linear motion bushing designed for smooth, low-friction travel on 12mm hardened and ground shafts.
- Ideal for CNC machines, 3D printers, robotics, and automation systems, the LMF12UU round flange linear bearing provides stable guidance, accurate positioning, and long service life in both industrial and DIY applications.
- Made with a solid steel outer cylinder and an industrial resin retainer, the bearing offers strong rigidity and wear resistance.
- Its 4-row ball circuits support smooth linear motion even at higher speeds, while the standardized design makes replacement and integration simple.
Specifications
- Model: LMF12UU
- Inner Diameter (ID): 12 mm
- Outer Diameter (OD): 21 mm
- Round Height: 30 mm
- Ball Rows: 4
- Type: Closed-type round flange linear ball bearing
- Material: Solid steel outer cylinder + resin retainer
Features
- High precision guidance: Consistent linear motion on 12mm shafts
- Smooth travel: 4-row ball circuits for low friction and high-speed movement
- Durable build: Solid steel body with resin ball retainer
- Flexible mounting: Round flange can be mounted from various directions
- Standardized parts: Easy replacement of worn components
- Wide compatibility: CNC, 3D printers, robotics, automation, and DIY builds
Applications
- CNC Machines: Provides precise, smooth linear motion for milling and cutting
- 3D Printers: Ensures stable movement along linear rails for accurate printing
- Robotics & Automation: Reliable motion system for robot arms and automation equipment
- DIY Prototyping: Perfect for custom linear motion systems and maker projects
- Industrial Machinery: Withstands heavy loads and continuous operation
Package Includes
1 piece of LMF12UU 12mm Round Flange Linear Bearing (as per order)











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