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THK LM SYSTEM

Compact Series Actuator (KRF Series)

Fully enclosed design : Strip seals on the side cover and upper surface provide a fully enclosed structure, preventing damage that might arise from penetration by foreign matter in the surrounding environment. The strip seals adhere magnetically, which reduces uplift and prevents gaps.

High rigidity : The KRF series employs an outer rail with a U-shaped cross section, enabling it to accommodate a sizable moment load. The actuator body's high rigidity allows for a compact, space-saving design.

Economy Series Actuator (ES/EC Series)

Compact and reliable : By incorporating an LM Guide within its rectilinear guide, the ES provides both compactness and reliability.
Reasonably priced : The use of LM Guides reduces the number of components required, making the ES available at a reasonable cost.
Long-term maintenance-free operation : The ES incorporates the model SRS LM Guide, equipped with ball retainers, as well as Lubricator QZ, for optimal ball-screw lubrication. The combined effect provides for long-term maintenance-free operation.
Predictable service life :The service life of the LM Guide and ball screw can be calculated based on usage conditions.

 

Linear Rotary Series (CCR)

LM & rotation is integrated in one package. FL mode (force control) : The force can be controlled while easily controlling the speed and position.
Hollow shaft employed. This can be used as an air flow path.
Lightweight and Compact. Multi-motion Actuator equipped with integrated encoder realizes light weight and compact size allows higher speed for higher productivity.
∙ Minimum size is 200g
∙ Width: 14mm or more   Height: 46.8mm or more
Multimotion actuator with independently controllable LM and rotation

 

Thin Lightweight Turntable (ET Series)

Thin lightweight structure : It realizes thickness reduction and weight reduction while being able to apply loads in any directions including radial load, axial load, and moment load adopting a cross roller ring for the rotation part.

Universal Series Actuator (USW Series)

Long service life : Most US models have a running life of 20,000km with the maximum load capacity applied (10,000km for US6 and 8), which is the highest level of service life in the industry. LM Guide and ball screw running life can also be calculated based on usage conditions.

Long-term maintenance-free operation :
Thanks to the use of Caged Ball LM Guide model SHW (US8) and model SHS (US12, 16, and 20) in a rectilinear guide, and Lubricator QZ, which supplies just the right amount of lubricant in the ball screw, this series provides long-term maintenance-free operation.
Model SHW is highly resistant to moment load in the Mc direction due to its 4-way equal load design and wide rail structure.
Model SHS, a global-standard size LM Guide, can accept loads in all directions (radial, reverse radial, and lateral) due to its 4-way equal load design.

High speed : Most units in this series (US8 to USW20) accommodate twice as many types of leads for each ball screw shaft diameter. This reduces processing time and enables the device to operate at high speeds.

Smart structure : In most units the standard sensor is incorporated into the actuator, making the actuator highly compact(this does not apply to the US6). For other sensor options, the sensor is installed on the outside of the unit. US8: 1 sensor (home position); USW12, 16, and 20: 3 sensors (home position and ends).
Easy assembly : For the standard unit, both table and base have dowel pin holes, and the base has elongated holes. These facilitate installation and assembly, enabling the unit to be mounted easily. Either top face mounting or lower face mounting can be selected for the base (this applies to US12, 16, and 20 only).
Versatile lineup : These units accommodate stroke lengths, specified in 50mm increments, ranging from 100mm to 1,700mm. Many types of ball screw leads are provided as well, enabling customers to select a unit ideally suited to their needs.