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Linear unit LES 4 with Spindle drive

The isel LES 4 Linear Unit with Spindle Drive is a high-precision linear axis designed for compact machine designs and demanding industrial automation applications. Featuring a robust aluminium profile, precision steel guide shafts and a spindle drive system, the LES 4 delivers accurate, smooth and reliable linear motion. With repeat accuracy of ±0.02 mm and a range of ball screw pitches, it is ideal for positioning, handling and precision engineering tasks.

linear unit les 4 with spindle drive featured

Features

  • Spindle drive for precise linear positioning
  • Aluminium shaft support profile (75 x 75 mm) with natural anodised finish
  • Backlash-free aluminium shaft slide with central lubrication
  • Ball screw pitches of 2.5, 4, 5, 10 and 20 mm
  • Two precision steel guide shafts Ø12 h6 (Cf53, 60 ±2 HRC)
  • Repeat accuracy of ±0.02 mm
  • Integrated limit and reference switches
  • Abrasion-resistant profile sealing lips
  • Sealed angular contact ball bearings
  • Compatible with stepper or servo motors

Highlights

The LES 4 combines a compact design with exceptional positioning accuracy and rigidity. Precision steel guide shafts, backlash-free shaft slides and abrasion-resistant sealing provide smooth, dependable operation, while face-milled mounting surfaces simplify installation and ensure accurate alignment. A choice of ball screw pitches allows the unit to be configured for a wide range of motion requirements.

Options

  • Black anodised aluminium profile
  • Electromagnetic brake in the motor module or spindle extension
  • Steel carriage
  • External limit switch mounting kit

Applications

Suitable for mechanical engineering, industrial automation, positioning systems, handling equipment, assembly machinery, CNC applications and other precision motion systems requiring accurate and repeatable linear movement.

Technical Data

Construction

  • Material: AlMgSi0.5 F22
  • Anodised finish: E6/EV1
  • Profile dimensions: 75 x 75 mm

Performance

  • Repeat accuracy: ±0.02 mm
  • Ball screw pitches: 2.5, 4, 5, 10 and 20 mm

Profile Data

  • Moment of inertia (Ix): 107.711 cm⁴
  • Moment of inertia (Iy): 125.843 cm⁴
  • Centre of gravity: 33.23 mm
  • Cross-sectional area: 18.81 cm²

Weight

  • With steel shafts: 6.2 kg/m
  • With steel shafts and spindle: 7.6 kg/m

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