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Ball Spline Unit With Integrated Rotary 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.

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Spherical Rolling Joint

The essential multi-degree-of-freedom joints for parallel mechanisms have conventionally been obtained 2 to 3 degrees of freedom with combinations of spherical joints. However, such spherical joints combinations often lead to structural complexity and bulkiness. There are multi-degree-of-freedom sliding spherical ball bearings available, but they come with large frictional resistance and internal clearance issues. Hephaist has developed SRJ – Spherical Rolling Joints as the solutions to all these issues.