LM12UU Linear Bearing
Linear bearing
- Shaft dia. d12 mm
- Outer dia. D21 mm
- Length L30 mm
- Weight≈ 0.032 kg
Linear shafts and guide systems: CNC, 3D printers, automation and packaging machines.
Technical data
| Bearing designation | LM12UU |
|---|---|
| Type | Linear bearing |
| Shaft dia. d | 12 mm |
| Outer dia. D | 21 mm |
| Length L | 30 mm |
| Weight | ≈ 0.032 kg |
Designation meaning and notes
- Standard length.
- UU: Seals at both ends
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Matching seal (radial shaft seal)
12 × 21 × 7 mm
Seal weight: ≈ 3 g
Other common widths: 12 × 21 × 10 mm
UU-type linear bearings have their own seals at both ends.
The seal's inner diameter matches the shaft (12 mm) and its outer diameter matches the housing bore (21 mm); the width depends on the space in the housing. NBR (double lip, TC type) is recommended for general use and FKM (Viton) for high temperatures.
Quote for bearing and seal