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  5. Ultra-Rigid, Low-Profile Model SRN

Caged Roller LM Guide Ultra-Rigid, Low-Profile Model SRN

Interchangeable with LM Guide Model SNR which was designed for machine tools.

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

Size : 35,45,55,65

Types

Highlight feature tags

  • Flange
  • Long block LM Guide
  • Ultra long block
  • Bolts mounted from above and below
  • Bolts mounted from above
Model SRN-C
  • Flange
  • Bolts mounted from above and below

Basic load rating(kN) : Basic dynamic load rating 59.1 to 219 / Basic static load rating 119 to 441
Size : 35,45,55,65

Model SRN-LC
  • Flange
  • Long block LM Guide
  • Bolts mounted from above and below

Basic load rating(kN) : Basic dynamic load rating 76 to 278 / Basic static load rating 165 to 599
Size : 35,45,55,65

Model SRN-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

Model SRN-R
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 59.1 to 219 / Basic static load rating 119 to 441
Size : 35,45,55,65

Model SRN-LR
  • Long block LM Guide
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 76 to 278 / Basic static load rating 165 to 599
Size : 35,45,55,65

Model SRN-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

Features

Structure and Features

SRN 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 long-term maintenance-free operation to be achieved.

Low-Profile Low Center of Gravity

Because it has a lower total height than the Caged Roller LM Guide Model SRG, it is ideal for compact designs.

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.