Full-Ball LM Guide Super-Heavy Load (Radial) Models NRS-X / NRS for Machine Tools Model NRS-A

The flange of its LM block has tapped holes.

  • High rigidity
  • Super-rigid
  • Ultra-rigid
  • High accuracy
  • Heavy load
  • Ultra-heavy load
  • Damping
  • 4-way type
  • For machine tools
  • Flange
  • Bolts mounted from above

Basic load rating (kN): Basic dynamic load rating 212 to 376 / Basic static load rating 431 to 737
Size : 75,85,100

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Detailed information

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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

Other

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

Display result

Detailed information
Dimensional drawing/Dimensional table
Optional

Detailed information

Dimensional drawing/Dimensional table

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

For oil lubrication, be certain to let THK know the mounting orientation and where the LM block piping joint should be attached. (Mounting orientation: see Conditions of the LM Guide, Lubricant: see Accessories for Lubrication)

  • ** A pilot hole for side nipples, when a grease nipple for a model equipped with LaCS or QZ Lubricator is needed. Pilot holes for side nipples are not drilled through for models other than those stated above. For grease nipple mount machining, contact THK.

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.

Model number coding

(*1)See Contamination protection accessory symbol (*2)See Radial Clearance Standard (*3)See Accuracy Standard (*4) Specify the plate cover or the steel tape. (*5)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.) 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

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.

Optional

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