LM Guide Models for Special Environments Low-Magnetic Permeability Model HSR-M3

An LM Guide that resists the effects of magnetic fields has been added to the lineup of the tried-and-true Model HSR. For this product, a relative magnetic permeability of 1.02 is achieved using components made of materials with low magnetic permeability so that maximum performance can be achieved even in a magnetic field. Additionally, with a hardness of 40 HRC or greater, the material used for the Model HSR-M3 can tolerate higher loads than SUS316, which is itself well-known for its low magnetic permeability.

Size : 15,20,25

Precautions on Use

Types

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Basic load rating(kN)：Basic dynamic load rating 2.3 to 5.8 ／ Basic static load rating 1.9 to 4.4
Size : 15,20,25

Basic load rating(kN)：Basic dynamic load rating 3 to 7.4 ／ Basic static load rating 2.7 to 6.2
Size : 15,20,25

Basic load rating(kN)：Basic dynamic load rating 2.3 to 5.8 ／ Basic static load rating 1.9 to 4.4
Size : 15,20,25

Basic load rating(kN)：Basic dynamic load rating 3 to 7.4 ／ Basic static load rating 2.7 to 6.2
Size : 15,20,25

Features

Structure and Features

Low Magnetic Permeability (A Relative Magnetic Permeability of 1.02 or Less)

An LM Guide that resists the effects of magnetic fields has been added to the lineup of the tried-and-true Model HSR. For this product, a relative magnetic permeability of 1.02 is achieved using components made of materials with low magnetic permeability so that maximum performance can be achieved even in a magnetic field.
Additionally, with a hardness of 40 HRC or greater, the material used for the Model HSR-M3 can tolerate higher loads than SUS316, which is itself well-known for its low magnetic permeability.

Did you know?

What is relative magnetic permeability?

Relative magnetic permeability is the ratio of the magnetic permeability of a substance to that of a vacuum according to the following formula.
The lower a substance’s relative magnetic permeability, the more it resists the effects of a magnetic field.

Hardness and Relative Permeability of Materials

The HSR-M3 is made of a material that resists the effects of magnetic fields in the same way that SUS316 does while also providing hardness of 40 HRC or greater.
This makes magnetic fields a non-issue during design.

Placement within a Magnetic Field

Model HSR-M3:
The material doesn’t become magnetized, so it barely affects magnetic flux.

Typical carbon steel product:
The material becomes magnetized, so it affects magnetic flux.

Example Applications

Using HSR-M3 LM Guide units enables smooth motion unaffected by strong magnetic fields.

MRI (magnetic resonance imaging) machines

Testing equipment

Four-Way Equal Load

Each row of balls is arranged at a contact angle of 45° so that the rated load on the LM block is uniform under loads applied in four directions (radial, reverse-radial, and lateral directions). Due to this, the HSR can be used in a variety of orientations, which expands the range of applications for which it is suitable.

Lineup

Flange Type C/LC Sizes: 15, 20, 25

The flanged area of the LM block has tapped holes to accommodate mounting bolts from above or below, making this a highly practical block type.
Two types of block are offered, the standard C type and the long LC type.

Compact Type R/LR Sizes: 15, 20, 25

With this type, the LM block has a smaller width (W) and tapped holes. It is ideal for compact designs.
Two types of block are offered, the standard R type and the long LR type.

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

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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.