Bearings
Linear Bearings & Shaft
Ball Bushings
LM Ball Bushings
Quick Code: BB-518907
LM12-UU ZEN Closed Sealed Linear Ball Bearing 12x21x30mm
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Product Specification
Angle compensation
Without misalignment compensation
Brand
ZEN
Inside Dia
12mm
Material
Standard bearing steel
Outside Dia
21mm
Seal
Sealed on all sides
Series
LM series
Temperature range
-30 to +80 °C
Version
Closed
Width
30mm
Reference
LM12-UU
Additional Reference:
10131405
Quick Order Code
BB-518907
Product Description
The LM12-UU ZEN Closed Sealed Linear Ball Bearing is a precision linear motion component engineered for applications requiring smooth, reliable shaft guidance and support in compact spaces. This sealed linear ball bearing features a closed design with all-sides sealing, combining the quality and reliability of the ZEN brand with robust construction for consistent performance in demanding environments.
Key Features:
- Closed design with sealed construction on all sides for maximum contamination protection
- Compact form factor ideal for space-constrained applications
- Standard bearing steel construction for strength and durability
- ZEN brand quality and precision engineering
- Smooth linear motion capabilities with minimal friction
- LM series compatibility for system integration
Specifications:
- Inside Diameter: 12mm
- Outside Diameter: 21mm
- Width: 30mm
- Reference: LM12-UU
- Brand: ZEN
- Material: Standard bearing steel
- Seal: Sealed on all sides
- Version: Closed
- Angle Compensation: Without misalignment compensation
- Operating Temperature Range: -30 to +80°C
Common Applications:
- Precision machinery and automation equipment
- CNC machines and precision tools
- Compact linear motion systems
- Medical and laboratory equipment
- Electronics assembly and manufacturing
- Industrial automation with space limitations
The fully sealed design makes this bearing ideal for environments where protection from dust, moisture, and other contaminants is essential, while the compact 12mm bore size provides an economical solution for applications where precision and durability are required at a smaller scale.


