Available in 5 sizes ranging from KSF4 to KSF10, small-lead ball screws enable high thrust force, while large-lead ball screws achieve high-speed operation. With a maximum stroke of up to 1500 mm, this unit accommodates a wide variety of applications.
KSF are also available fully equipped with motors and motion controllers. Featuring THK's intuitive motion controllers for fast, easy setup and reliable performance, the system supports motors from 50W servo to 750W output. A "Motor Wrap" configuration is also available for applications requiring a compact footprint.
THK flexibly accommodate customizing requests to your meet needs such as
・Non-standard lengths
・Custom motor mounting brackets, etc.
Please contact with THK via Chat, local contact, distributors.
Tools
Designer
Model KSF2D/3D CAD
Model KSF Download 2D&3D-CADLife Calculator
Model KSFFeatures
Structure and Features
Max Stroke of 1500mm
Capable of Long Strokes with the Same Width Dimension
Increasing the ball screw shaft diameter drastically boosts the maximum stroke while keeping the size compact. This product can be used in a wide range of fields.
Max Stroke Comparison
Max Stroke by Model
Enables Fast Cycle Times
Ball Screw Diameter Increased to Handle High Speeds and Rapid Acceleration/Deceleration
The drive element’ s ball screw shaft diameter and the angular ball bearing size have been pushed to the limit. This configuration can handle the maximum peak torque of the motor.
Max Speed Comparison
- * The maximum acceleration/deceleration depends on the model, specifications, and conditions.
Rapid Acceleration/Deceleration Reduces Cycle Time
This product shortens cycle time by 0.54 s (for a 500 mm stroke). This translates to 54 s over 100 cycles, boosting productivity by 40%.
Same-size THK Product
Achieves a Service Life of 20,000 km
Various Specifications Improved to Extend the Service Life
The service life when carrying the maximum load has been dramatically improved by increasing the basic dynamic load rating of the LM Guide and ball screw. Regular aluminum-base products have a service life of 5,000 km, but the KSF can run for 20,000 km (10,000 km for KSF4 or KSF5 with a 10 mm lead).
Service Life Comparison
Thin, Sleek Housing
More Freedom When Designing Interior Layouts of Devices
The housing is thin, sleek, and lightweight, with a dramatically reduced height and width. This product is about 67% more compact and about 37% lighter than the USW16T, which has the same rated output. This greatly improves the amount of freedom designers have for interior layouts of devices.
Maintains Precision for a Long Time
Adopts a Circular Arc Groove
The linear guide portion adopts a circular arc groove that provides smooth movement with no clearance and few sliding elements. It can easily keep up with a high-precision feed and maintain precision for a long time. 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 in four directions (radial, reverse radial, and horizontal). It can be used in any direction and orientation.
High Durability Against Moment Loads
Improved Static Permissible Moment While Remaining Compact
This product features an outer rail with a U-shaped cross-section, so it is resistant to torsion, bending, and deflection. Even when a large moment is applied, it demonstrates superior rigidity. It is even suited for applications where there is a large overhang on the upper shaft of the X/Y axis.
