PRODUCTS INFORMATIONBall splines

Ball splines

Ball splines

Ball splines are a kind of linear bearing

There are 2 types of linear bearing: Finite Linear Motion Type – limited stroke type, and Infinite Circular Type – unlimited stroke type.

Linear motion using the rolling motion of balls. With the rolling grooves on the shaft and outer cylinder, it can handle both radial loads and rotational torque.

It is ideal for mechanisms that execute linear movements while transmitting torque, and is used in a wide range of fields including transfer equipment and robots.

Comparison of limitless recirculating and limited stroke types

  Limitless recirculating Limited stroke
Structure Complex Relatively simple
Stroke Unlimited Limited
Noise Relatively loud Quiet
Other Retainer becomes misaligned
The outer diameter is easily reduced.

Suggestions from HEPHAIST

Features of HEPHAIST Ball Splines

HEPHAIST ball splines have a circular arc structure achieving an ideal four lines of balls.

They can withstand equivalent loads in four directions, whether radial or moment loads.

The secure structure prevents the balls from falling out even if the shaft is drawn out of the nut.

They are used in a wide range of fields including transfer equipment and industrial robots.

    Recommended for equipment for handling, mounting and inspecting semiconductor chips!

  • Standardized Z-axis × θ-axis integrated splines.
  • Specializing in linear rolling motion rather than rotational torque
  • Pre-assembled unit for easier maintenance
  • Feature of limited stroke ball splines are the rolling resistance fluctuates less and the motion is smoother. This product both ends of the shaft are machinable, the user can do machining at the user ends.

Product Lineup

Ball spline units with an integrated rotary bearing (Finite Linear Motion Type)

Feature of limited stroke ball splines are the rolling resistance fluctuates less and the motion is smoother. This product both ends of the shaft are machinable, the user can do machining at the user ends.

For more information
Technical Information
You can view 2D and 3D CAD data and operation simulations for various products.
file_downloadBall spline units with an
integrated rotary bearing
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