Radial-axial bearings are usually completely assembled and screwed axially onto a surface, as is usually the case with polymers Rotary table bearings (PRT) of Igus. Due to a customer request, the Plasticspecialist has now developed a divisible "Iglidur PRT" so that its special construction could be implemented in an uncomplicated manner.

Usually, bearings are slid over a shaft during assembly and then placed. In the case of central or support bearings, however, this is not easily possible because the shaft is already fixed on both sides. An Igus customer had a need to make a rotary table bearing divisible. He wanted the rotary table bearing without much effort assemble in place.

The well-known Iglidur PRTs rotary table bearings have an aluminum inner and outer ring lubrication-free sliding film. This minimizes the friction between the two rings. Igus engineers have now developed a split rotary table bearing for the customer.

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"In this new development, the Iglidur PRT was designed in such a way that it can be placed around a pipe or shaft, for example, and then closed back into its ring shape," explains Gerhard Baus, Authorized signatory at Igus. "The movement between the inner and outer ring can then be carried out in the usual way."

Sliding elements in divided rotary table bearings

In contrast to the usual PRTs, the usual ones could not be used for these special solutions Sliding elements used as they would not have stayed in place if the case was split. Instead, the smear-free tribo tape is used in this case Iglidur A160 for use. The self-adhesive film is 0,5 mm thick and can be easily cut to size. Like the sliding elements made from Iglidur J, the tribo-tape is also self-lubricating. It therefore requires no maintenance and is FDA-compliant.

Rotary table systems for precise workpiece positioning

The new design of split polymer rotary table bearings is available on request. So all special application requirements can be met in the design customized be taken into account.

How the rotary table bearing works in the video

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