LEKFS, High Rigidity Ball Screw Slider, AC Servo Motor

The LEKFS slider is an electric actuator with a load mounting platform situated above a ballscrew drive.  LEKFS has the same external dimensions and mounting as LEFS, but LEKFS includes a redesigned guide with 4 rows of steel balls instead of 2.  This more rigid design decreases table movement, permits greater offset loads, and improves positioning repeatability.  Additional enhancements vs. the LEFS include standard auto switch mounting grooves and positioning pin holes, plus improved dustproof performance with magnetic seal band adhesion. This model is fitted with an AC servo motor with incremental or absolute encoder.  Optional drivers include pulse input and various communication protocols including Ethernet.


  • Body sizes: 25, 32, 40
  • Maximum work load: 60 kg
  • Maximum speed: 1500 mm/s
  • Stroke range: 50 to 500mm in 50mm increments, 600-1200mm in 100mm increments
  • Positioning repeatability: ±0.01mm
  • Dynamic allowable moment: 8-61% improved vs. LEFS (size and axis dependent)
  • Encoder resolution: 17-bit (S motors), 22-bit (T motors), 20-bit (V motors)
LEKFS, High Rigidity Ball Screw Slider, AC Servo Motor
Configuration Options
Copy Configuration Number

Product Options

Select Product Options
Select values from the drop down lists or make appropriate selections to configure the part number.
Series Configuration Status
Size Configuration Status
Motor Mounting Position Configuration Status
Motor Type Configuration Status
Lead Configuration Status
Stroke Configuration Status
Motor Option Configuration Status
Grease Application Configuration Status
Cable Type Configuration Status
Cable Length Configuration Status
Driver Type Configuration Status
I/O Cable Length Configuration Status
Options in:
  • Gray are not compatible with other selected option value.
  • Red conflict with another selected option value.
  • Amber are not recommended.


The part number needs to be complete in order to view/download CAD Models.

Model does not exist, please email cad@smcusa.com with the complete part number, CAD file format and version required.

CAD Downloads

Download CAD File

View CAD Models

View 3D Model

Product Catalog

Series Catalog

RoHS Certificate

Download Certificate