Caged Ball LM Guide Miniature Model SRS Model SRS-N

Compared with model SRS-M , it has a longer total LM block length (L) and a higher load rating and permissible moment.

Basic load rating (kN): Basic dynamic load rating 0.515 to 9.71 / Basic static load rating 0.586 to 11.9
Size : 5,7,9,12,15

Precautions on Use

Select display items

Click on the feature tag you wish to view and press the button to display. Detailed information is displayed at the bottom of the screen.

Detailed information

THK Online Services
Member-Exclusive Content

These contents can be accessed

after registering as a member.

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.

Optional

Block Compatible Option

Seal and Metal Scraper

Rail Compatible Option

Cover

Cap

Block Compatible Option

Block and Rail Compatible Option

Surface Treatment

Material

Show selected item

Display result

Detailed information: Dimensional drawing/Dimensional table

Optional

Detailed information

Dimensional drawing/Dimensional table

Notes on dimensional table

Note) Since stainless steel is used in the LM block, LM rail and balls, these models are highly resistant to corrosion and environment. The SRS-G is equipped with uncaged, full-complement bearings. Using a greasing hole other than for greasing may cause damage.

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

Total block length L : The total block length L shown in the table is the length with the dust proof parts, code UU or SS. If other contamination protection accessories or lubricant equipment are installed, thetotal block length will increase. (See LM Block Dimension (Dimension L) with LiCS Attached or LM Block Dimension (Dimension L) with QZ Attached) For the SRS5M and SRS5N LM guide, the balls will fall out of the block if it is removed from the rail. To secure the LM rail of model SRS5M, use cross-recessed head screws for precision equipment (No. 0 pan head screw, class 1) M2.

Note2) 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.

● Reference bolt tightening torque when mounting an LM block for model SRS 5 and 7 are shown in the table below.

Reference tightening torque

Model No.	Model No. of screw	Screw depth (mm)	Reference tightening torque(N･m) *
SRS 5	M2	1.5	0.4
SRS 7	M2	2.3	0.4

* Tightening above the tightening torque affects accuracy. Be sure to tighten at or below the defined tightening torque.

Model number coding

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

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.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

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

THK Online Services
Member-Exclusive Content

These contents can be accessed

after registering as a member.

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.

Optional

No option tag has been selected.

Check detailed information with the tool

Click on the icon for the item you want to see in detail. Member registration and login are required for use.
Designer is the former optimal product selection tool
You can download 2D/3D CAD by clicking on the icon and selecting from the CAD format.

Model No.	Designer*	Life Calculator*	CAD Download*	Catalog Download	Manual Download
SRS5N
SRS5GN
SRS7N
SRS7GN
SRS9XN
SRS9XGN
SRS12N
SRS12GN
SRS15N
SRS15GN

*marks are not available for guest members.