Model

LMK12UU

Type

Rectangular Flange Linear Ball Bearing

Inner Diameter (ID)

12 mm

Outer Dimensions

Typically ~21 mm (width) × ~30 mm (height) – exact dimensions vary by manufacturer.

Flange Type

Rectangular (for easy mounting and stability)

Material

High-carbon chromium steel (bearing), POM/Stainless Steel (optional outer shell)

Load Capacity

Moderate radial and axial loads (exact values depend on manufacturer specs)

Precision

Smooth linear motion with low friction

Lubrication

Pre-lubricated (often with grease for long service life)

Compatibility

Works with 12 mm linear shafts (hardened steel recommended)

Mounting

Screw holes on flange for secure attachment

Applications

CNC machines, 3D printers, automation systems, sliding mechanisms