Miniature Model RSX｜LM Guide｜Product Information｜THK Official Web Site [Singapore]

Types

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Basic load rating (kN): Basic dynamic load rating 0.95 to 4.01 / Basic static load rating 1.16 to 4.24
Size : 7,9,12,15

Basic load rating (kN): Basic dynamic load rating 1.06 to 5.59 / Basic static load rating 1.35 to 6.78
Size : 7,9,12,15

Basic load rating (kN): Basic dynamic load rating 0.37 to 5.59 / Basic static load rating 0.53 to 6.78
Size : 5,7,9,12,15

Basic load rating (kN): Basic dynamic load rating 0.5 to 7.43 / Basic static load rating 0.82 to 10.1
Size : 5,7,9,12,15

Basic load rating (kN): Basic dynamic load rating 0.45 to 8.27 / Basic static load rating 0.7 to 11.8
Size : 5,7,9,12,15

Basic load rating (kN): Basic dynamic load rating 0.64 to 9.87 / Basic static load rating 1.17 to 15.2
Size : 5,7,9,12,15

Features

Structure and Features

Balls roll in two 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 recirculate. The Model RSX uses two rows of raceways, and it can help reduce the size of a device because it has more compact outer dimensions than models with four raceways. In addition, despite its compact size, the ball contact structure can take loads in each direction, so it can be used with a single axis in locations where moments are applied.

Super Compact

The LM rail has one raceway on each side, and its compact design with low cross-sectional height allows it to be installed in locations with limited space.

Corrosion Prevention

The LM rail, LM block, and balls are made of stainless steel, which has high corrosion resistance.

Retains Balls

This model incorporates a ball-retaining wire that prevents balls from falling out when the LM block is removed from and inserted onto the LM rail, making mounting easy.

Flatness of the LM Rail and the LM Block Mounting Surface

Since the Model RSX has Gothic-arch grooves, any precision errors in the mounting surface may negatively affect its operability. Therefore, we recommend using it on mounting surfaces made with high precision.

Table1 Flatness of the LM Rail and the LM Block Mounting Surface

Unit: mm

Model No.	Flatness error
RSX 5	0.015/200
RSX 7	0.025/200
RSX 9	0.035/200
RSX 12	0.050/200
RSX 15	0.060/200

Note1) As there are many cases in which the mounting surface precision is affected by a number of factors, we recommend using 70% or less of the values shown.
Note2) The above figures apply to normal clearances.When using two or more rails with C1 clearance, we recommend using 50% or less of the values shown.

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