LM Guide Models for Special Environments High-Temperature Model SR-M1

This is a highly corrosion-resistant LM Guide that achieves a maximum service temperature of 150℃.

Size : 15,20,25,30,35

Types

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Basic load rating(kN): Basic dynamic load rating 13.8 to 60.4 / Basic static load rating 20.5 to 81.8
Sizes : 15,20,25,30,35

Basic load rating (kN): Basic dynamic load rating 9.1 to 40.9 / Basic static load rating 11.7 to 46.7
Sizes : 15,20,25,30,35

Basic load rating (kN): Basic dynamic load rating 13.8 to 60.4 / Basic static load rating 20.5 to 81.8
Sizes : 15,20,25,30,35

Basic load rating (kN): Basic dynamic load rating 9.1 to 40.9 / Basic static load rating 11.7 to 46.7
Size : 15,20,25,30,35

Features

Structure and Features

Balls roll in four rows of raceways precision-ground on an LM rail and an LM block, and end plates incorporated in the LM block allow the balls to circulate. Since it is a compactly designed model that has a low cross-sectional height and a ball contact structure that is suited to large loads in the radial direction, this model is optimal for horizontal guide units. High-Temperature LM Guide Model SR-M1 is capable of being used at service temperatures up to 150°C thanks to THK’s unique technologies in material, heat treatment, and lubrication.

Maximum Service Temperature: 150°C

Use of stainless steel in the end plates and high-temperature rubber in the end seals achieves the maximum service temperature of 150°C.

Dimensional Stability

The product has undergone processing which grants it superb dimensional stability even when heated or cooled (though it does expand some at high temperatures).

Highly Corrosion Resistant

Since the LM block, LM rail, and balls use stainless steel, which is highly corrosion resistant, this model is optimal for clean room applications.

High-Temperature Grease

This model uses high-temperature grease that shows little grease-based fluctuation in rolling resistance even if the temperature changes from normal to high.

Thermal Characteristics of LM Rail and LM Block Materials

Specific heat capacity: 0.481 J/(g･K)
Thermal conductivity: 20.67 W/(m･K)
Average coefficient of linear expansion: 11.8 × 10^-6/°C

Service Life

When using this product in temperatures higher than 100°C, always multiply the basic dynamic load rating by the temperature coefficient when calculating the rated service life. See Calculating the Modified Nominal Life for details.