LM Guide Models for Special Environments Medium-to-Low Vacuum Model HSR-M1VV

Operable in various environments at pressure between atmospheric pressure and vacuum. Capable of withstanding baking temperature up to 200°C.

  • High accuracy
  • 4-way equal load
  • Medium-to-low vacuum

Size : 15

Types

Highlight feature tags

  • Bolts mounted from above
Model HSR-M1VV
  • Bolts mounted from above

Basic load rating(kN) : Basic dynamic load rating 10.9 / Basic static load rating 15.7
Size : 15

Features

Structure and Features

Features

  • Operable in various environments at pressure between atmospheric pressure and vacuum (10 -3 [Pa]).
  • Capable of withstanding baking temperature up to 200°C *
  • Use of a newly developed labyrinth end seal dedicated for Medium-to-Low Vacuum increases grease retention and allows extended use in vacuum.
  • Use of grease designed for Medium-to-Low Vacuum achieves a stable rolling resistance.

* If the baking temperature exceeds 100°C, multiply the basic load rating with the temperature coefficient.

Structure of the labyrinth end seal dedicated for Mediumto-Low Vacuum

The labyrinth end seal dedicated for Medium-to-Low Vacuum forms a multi-stage space as shown in the figure on the right to minimize the pressure difference between adjacent stages. This reduces the out-flow velocity of the oil inside the LM block to a minimum. In addition, the seal will not affect the rolling resistance since it does not contact the LM rail.

Achievable vacuum level

The LM Guide for Medium-to-Low Vacuum demonstrates an excellent achievable vacuum level.
[Test conditions] Temperature: 25°C (±5°C)

HSR15M1RVV

HSR15R (for
reference)

Grease

Grease for Medium-
to-Low Vacuum

AFB-LF Grease

Seal

Labyrinth end seal
dedicated for Medi-
um-to-Low Vacuum

None

Endplate

Stainless steel

Resin

Achievable vacuum level

Rolling resistance

The grease used in the LM Guide for Medium-to-Low Vacuum has a smaller rolling resistance than conventional fluorine grease and ensures stable rolling motion.
Specimen: HSR15M1RVV
Temperature: 25°C (±5°C)
Pressure: atmospheric pressure

Rolling resistance fluctuation

Precautions on Design

If a large moment is applied to a system consisting of one LM rail or one LM block per shaft, the labyrinth end seal may contact the LM rail, which could affect the system’s motion. If a moment is applied, it is recommended to use two rails with two LM blocks per rail. Contact THK for details.

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.