Products - Linear system

Construction and characteristics

The torque ball bushing allows the establishment of a precision longitudinal track using two components: the bearing and a profile shaft.
Shafts for torque linear bearings: Material: Cf53, precision drawing and inductive hardening.
Both the bearing and the shaft have 3 or 4 ball tracks shaped like gothic arches, which form a 4-point contact with each load-bearing ball. The construction of the tracks ensures a very precise movement of the bering for loads from any direction. They are high-frequency hardened along their entire length. Due to the plastic cage and the robust construction, the noise and vibration of the bearing could be significantly reduced.

Increased dynamic load rating
The implementation of the ball tracks in the form of a gothic arch increases the contact surface of the balls. This has allowed the load capacity of the construction to be significantly increased.

Dichtheit
All torque ball bushings are delivered with seals on both sides which fit perfectly into the profile groove of the shafts. This results in a secure seal as well as a large lubrication space in the bearing. The bearings can be relubricated using the bearing nipples provided.

Small space requirements
The outer diameter of the bearing has been kept to a minimum. The return of the balls was optimised from this standpoint.

Radial play
Of great significance for the precision and service life of the system in a given application is the selection of the right radial play. For unpaired units, the radial play cannot be definitely specified (increased radial play and/or increased prestressing are possible).

Example applications

T0: Measurement equipment, packaging machines: very little vibration, load only from one direction
T1: Robot arms, XY tables, assembly machines: mild vibrations, changing load directions
T2: Welding machines, cutting tables: strong vibration, frequently changing load directions

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Torque linear bearings

SSP...

SSPF...

SSPT...

SSPB...

SPR...
SPR rotation torque bearings can execute linear and rotary movements simultaneously. Particularly in robots, tool changers, and many handling tasks, rotation torque bearings can significantly reduce the number of guide components. Thus assembly is significantly simplified and belt drive faults which can arise from additional tolerances are effectively eliminated.

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