LM20UU Linear Bearing

Linear bearing

  • Shaft dia. d20 mm
  • Outer dia. D32 mm
  • Length L42 mm
  • Weight≈ 0.094 kg

Linear shafts and guide systems: CNC, 3D printers, automation and packaging machines.

Technical data

Bearing designationLM20UU
TypeLinear bearing
Shaft dia. d20 mm
Outer dia. D32 mm
Length L42 mm
Weight≈ 0.094 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)

20 × 32 × 7 mm

Seal weight: ≈ 6 g

Other common widths: 20 × 32 × 10 mm

UU-type linear bearings have their own seals at both ends.

The seal's inner diameter matches the shaft (20 mm) and its outer diameter matches the housing bore (32 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

All seal sizes and matching bearings →