Full-Ball LM Guide Radial Type Model SR Models SR-W/WM

With this type, the LM block has a smaller width (W) and tapped holes.

  • High accuracy
  • Self-adjusting capability
  • Radial
  • Bolts mounted from above

Basic load rating (kN): Basic dynamic load rating 13.8 to 136 / Basic static load rating 20.5 to 179
Size : 15,20,25,30,35,45,55

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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.

Optional

Contamination Protection

Block Compatible Option

Seal and Metal Scraper

  • End seal
  • Side seal
  • Inner seal
  • With end seal + side seal + inner seal
  • With double seals + side seal + inner seal
  • With end seal + side seal + inner seal + metal scraper
  • With double seals + side seal + inner seal + metal scraper
  • The LM Block Dimension with Seals Attached
  • Maximum Seal Resistance
  • Laminated Contact Scraper LaCS
  • The LM Block Dimension with LaCS is Attached
  • Incremental Dimension with Grease Nipple when LaCS is Attached
  • Maximum resistance for LaCS
  • Side Scraper
  • Maximum resistance for the side scraper
  • Protector
  • The LM Block Dimension with Protector is Attached
  • Light-Resistance Contact Seal LiCS
  • The LM Block Dimension with LiCS is Attached
  • Incremental Dimension with Grease Nipple When LiCS is Attached
  • Maximum resistance for LiCS
  • High Chemical Resistance Fluorine Seal FS
  • Overall block length with fluorine seals and other accessories attached
  • Maximum seal resistance of FS

Rail Compatible Option

Cover

  • Plate Cover SV
  • Plate Cover
  • Steel Tape SP
  • Dedicated Bellows
  • Dedicated LM Cover

Cap

  • Dedicated Cap for LM Rail Mounting Holes Cap CV/Cap C
  • Dedicated Cap for LM Rail Mounting Holes Cap GC

Lubrication

Block Compatible Option

  • QZ Lubricator
  • The LM Block Dimension with QZ is Attached

Rustprevention

Block and Rail Compatible Option

Surface Treatment

  • Surface Treatment

Material

  • Stainless Steel Products

Other

  • Lubrication Adapter
  • Removing/mounting Jig
  • End Piece EP

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Detailed information
Dimensional drawing/Dimensional table
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Dimensional drawing/Dimensional table

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Notes on dimensional table

Note1) The maximum length under "Length * " indicates the standard maximum length of an LM rail.(See Standard Length and Maximum Length of the LM Rail)

Static permissible moment *

  • 1 block: the static permissible moment with one LM block
  • Double blocks: static permissible moment when two LM blocks are in close contact with each other

The M in the model number symbol indicates that the LM block, LM rail and balls are made of stainless steel. The stainless steel provides excellent corrosion and environmental resistance. Models SR85T, 100T, 120T and 150T are build to order. Models SR85T and 100T include a grease nipple on the side face of the LM block. Contact THK for details.

Note2) For models SR15 and 25, two types of rails with different mounting hole dimensions are offered (see Table1 ). When, replacing this model with model SSR, pay attention to the mounting hole dimension of the LM rail. Contact THK for details.

Note3) The basic load rating in the dimension table is for a load in the radial direction. Use Table7 on Calculating the Equivalent Load to calculate the load rating for loads in the reverse radial direction or lateral direction.

Table1 The dimension of the rail mounting hole
Model No. Standard rail Semi-Standardrail
SR 15 For M3 (No symbol) For M4 (Symbol Y)
SR 25 For M6 (Symbol Y) For M5 (No symbol)
Model number coding

(*1)See Contamination protection accessory symbol (*2)See Radial Clearance Standard (*3)See Accuracy Standard (*4)See Symbol for No. of rails used on the same plane

  1. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.)
Notes on Ordering

[Order units]

Note that the number of items that constitute one set differs depending on the type of LM guide. Check the sample model number configurations and the accompanying notes.

Sample LM guide orders

SHS25C2SSC1+640L 1set
SHS25C2SSC1+640L-Ⅱ 2set

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.

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Model No.Designer*Life Calculator*CAD
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SR 15W
SR 15WM
SR 20W
SR 20WM
SR 25W
SR 25WM
SR 30W
SR 30WM
SR 35W
SR 35WM
SR 45W
SR 55W

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