Caged Roller LM Guide Ultra-Rigid Model SRG

An ultra-heavy load roller guide with a rigidity twice that of our Full-Ball LM Guide. It has global standard dimensions and achieves long-term maintenance-free operation.

  • Long-term maintenance free
  • High rigidity
  • Super-rigid
  • Ultra-rigid
  • High accuracy
  • Heavy load
  • Low friction
  • 4-way equal load
  • Ultra-heavy load

Size : 15,20,25,30,35,45,55,65,85,100

Types

Highlight feature tags

  • Flange
  • Long block LM Guide
  • Ultra long block
  • Bolts mounted from above and below
  • Bolts mounted from above
Models SRG-15XA/SRG-20XA/SRG-20XLA
  • Flange
  • Long block LM Guide
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 11.3 to 26.7 / Basic static load rating 25.8 to 63.8
Size : 15,20

Models SRG-XC/SRG-C
  • Flange
  • Bolts mounted from above and below

Basic load rating(kN) : Basic dynamic load rating 27.9 to 219 / Basic static load rating 57.5 to 441
Size : 25,30,35,45,55,65

Models SRG-XLC/SRG-LC
  • Flange
  • Long block LM Guide
  • Bolts mounted from above and below

Basic load rating(kN) : Basic dynamic load rating 34.2 to 601 / Basic static load rating 75 to 1170
Size : 25,30,35,45,55,65,85,100

Model SRG-SLC
  • Flange
  • Ultra long block
  • Bolts mounted from above and below

Basic load rating(kN) : Basic dynamic load rating 87.9 to 352 / Basic static load rating 199 to 811
Size : 35,45,55,65

Models SRG-XV/SRG-V/SRG-XR/SRG-R
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 11.3 to 219 / Basic static load rating 25.8 to 441
Size : 15,20,25,30,35,45,55,65

Models SRG-XLV/SRG-LV/SRG-XLR/SRG-LR
  • Long block LM Guide
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 26.7 to 278 / Basic static load rating 63.8 to 599
Size : 20,25,30,35,45,55,65

Models SRG-SLV/SRG-SLR
  • Ultra long block
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 87.9 to 352 / Basic static load rating 199 to 811
Size : 35,45,55,65

Model SRG-GK

Basic load rating(kN) : Basic dynamic load rating - / Basic static load rating -
Size : 15,20,25,30,35,45

Features

Structure and Features

SRG is an ultra-high rigidity Roller Guide that uses roller cages to allow low-friction, smooth motion and achieve long-term maintenance-free operation.

Ultra-high Rigidity

A higher rigidity is achieved by using highly rigid rollers as the rolling elements and having the overall roller length more than 1.5 times greater than the roller diameter.

4-way Equal Load

Since each row of rollers is arranged at a contact angle of 45° so that the LM block receives an equal load rating in all directions (radial, reverse radial and lateral directions), high rigidity is ensured in all directions.

Smooth Motion through Skewing Prevention

The roller cage allows rollers to form an evenly spaced line while circulating, thus preventing the rollers from skewing as the block enters an loaded area. As a result, fluctuation of the rolling resistance is minimized, and stable, smooth motion is achieved.

Long-term Maintenance-free Operation

Use of roller cages eliminates friction between rollers and increases grease retention, enabling longterm maintenance-free operation to be achieved.

Global Standard Size

SRG is designed to have dimensions almost the same as that of Full Ball LM Guide model HSR, which THK as a pioneer of the linear motion system has developed and is practically a global standard size.

Wide Array of Options

Various options are available, including end seals, inner seals, side seals, Laminated Contact Scraper LaCS, protectors, side scrapers, High Chemical Resistance Fluorine Seal FS, and GC caps, to accommodate various usage environments.

Detailed information for each model number

Dimensional drawing/Dimensional table

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Products Contents
LM Guide LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc.
Ball Screw Axial clearance, maximum manufacturing length of shaft, etc.
Actuator Movable part mass, etc.

Standard Lengths and Maximum Lengths of LM Rails

THK Online Services
Member-Exclusive Content

These contents can be accessed

after registering as a member.

Log in/Register Click here for THK Online Services details

Benefit 1: Useful features

  • Easy product comparisonsHighlight feature
  • Save items for laterreview Favorites feature

Benefit 2: Exclusive content

Products Contents
LM Guide LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc.
Ball Screw Axial clearance, maximum manufacturing length of shaft, etc.
Actuator Movable part mass, etc.