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Linear Slides
Linear Actuators / Cylinders
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THK Linear Actuators - KR Series
THK Linear Slides - KR Series
The THK KR Series linear slide consists of a highly rigid outer rail with a U-shaped cross section, LM Guide units on both sides and a Ball Screw unit in the center.
- High Rigidity, Compact and Space Saving Linear Slide
- Normal, High Accuracy or Precision types
- 30 mm up to 600 mm Stoke Lengths
- Motor, Driver, Coupling, Flange, Sensors available
Linear Slide Lineup
Model |
Frame Size |
Options |
Ball Screw |
Stroke |
Lead |
Max. Input |
Max. Input |
|
20 x 40 |
Covered Type | Normal, High Accuracy and Precision |
30, 80, 130 |
1 |
0.207 |
6000 |
|
26 x 50 |
Covered Type | Normal, High Accuracy and Precision |
60, 110, 160, 210 |
2 |
0.622 |
6000 |
|
33 x 60 |
Covered Type | Normal or |
50, 100, 200, 300, |
6 or 10 |
1.244 |
4700 |
LM Guide Actuators
Because of its integral-structure inner block consisting of a highly rigid outer rail with a U-shaped cross section, LM Guide units on both side faces and a Ball Screw unit in the center, LM Guide Actuator model KR achieves a highly rigid and highly accurate actuator in a minimal space. In addition, since the housings A and B also serve as support units and the inner block as a table, this model allows significant reduction of man-hours required for design and assembly, thus contributing to total cost cutting.
4-way Equal Load
Each row of balls is arranged at a contact angle of 45° so that the rated load on the inner block is uniform under loads applied to the inner block in the four directions (radial, reverse radial and lateral directions). As a result, model KR can be used in any mounting orientation.
High Rigidity
Use of an outer rail with a U-shaped cross section increases the rigidity against a moment and torsion.
High Accuracy
Since the linear guide section consists of 4 rows of circular-arc grooves that enable balls to smoothly move even under a preload, a highly rigid guide with no clearance is achieved. Additionally, variation in frictional resistance caused by load fluctuation is minimized, allowing the system to follow highly accurate feed.
3 Types of Accuracy Grades Available:
- Normal Grade: ±0.01 mm
- High Accuracy Grade: ±0.005 mm
- Precision Grade: ±0.003 mm
Load Ratings
Model KR basic load ratings are equal in all four directions.
Seal
Model KR is equipped with end seals and side seals for dust prevention as standard.
2-Phase Stepper Motor / Flange / Coupling Kits
The PKP Series 2-phase stepper motors packages offer exceptional performance with low vibration. Available with a 1.8° or 0.9° step angle, standard or with a 200 / 400 line, 3 channel encoder or with an electromagnetic brake for vertical, load holding applications.
NOTE: Do not exceed the Maximum Input Torque for Actuator.
Actuator |
Frame Size |
Motor Type |
42 mm |
2-Phase Bipolar |
|
42 mm |
||
42 mm or 56.4 mm |
CAD / Manual Search
To locate product CAD and Operator Manuals please search using the product Item Number.
