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2020 news – slewing ring bearings


Ideal for small installation spaces

The new PRT-04 slewing ring bearing is 60% lighter than its predecessor. The installation height has also been reduced by half, offering even more design freedom.

  • Saves at least 50% installation space
  • Up to 30% more cost-effective and
  • 60% lighter than the PRT-01
  • Available with diameters from 50mm to 300mm 
  • Wear-resistant, lubrication-free and maintenance-free iglidur sliding elements 

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PRT-04 with spur gear

The outer spur-type gear (ST) is now also available for the compact PRT-04 series.

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PRT-04 with internal gearing

For even more compact drive solutions

The PRT-04 with internal gearing has a compact design and allows drive from the inside. It is therefore suitable for applications where the installation space is limited, where lightweight or a cost-effective solution is required. With the exception of the toothed inner diameter, all components and dimensions are identical to the standard PRT.  

  • Compact design
  • Lightweight
  • For small installation spaces

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PRT-04 with locking mechanism

Stopmotion slewing ring bearings with defined locking points

Our new stop motion PRT in installation size 04 enables a defined latching at individually predefined positions. The PRT can be individually adapted to any application and is suitable for applications, for example an assembly table.

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PRT-04 with angular stop

PRT-04 with angle stop

Determine and individually adjust the angular stops

The angle limit for the PRT-04 can be continuously adjusted. This means that the pivoting range can be determined individually for each application and can be precisely adjusted to within 2°.

  • Continuously adjustable
  • Angle range in 2° steps
  • Load capacity identical to standard type 04

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With iglidur F2 sliding elements to avoid electrostatic charging

The PRT-04 made of stainless steel is conductive and prevents electrostatic charging. It is particularly suitable in areas where charging must be prevented, e.g. in the semiconductor industry or in laboratories.

  • Rings made of stainless steel and sliding elements made of iglidur F2
  • Prevents electrostatic charging
  • Protection against electrical currents

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PRT-04 distance ring

Allows replacement of an existing PRT-01 of the same connection size with a PRT-04

  • Around 20% more cost-effective than a PRT-01 of the same installation size
  • Up to 60% less weight and less energy consumption

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PRT-04 standard with DrivePin

Standard slewing ring bearing with drive pins

  • Easy replacement and extension: modular construction kit design
  • Driving the easy way with gear profile or drive pin for couplings
  • Adjustable by means of manual clamps

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Standard PRT with T-slot plate

Easy to assemble and subsequently position or disassemble

The new PRT-04 with a new slot nut profile is available. Add-on parts can thus be mounted in seconds and retrospectively positioned or removed.

  • Available for PRT-01 and PRT-04
  • Fast assembly
  • Easy positioning with no additional holes


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isense for PRT

Sensor for wear of iglidur® PRT slewing ring bearing

  • Predictive maintenance
  • Sensor measures the abrasion of the sliding elements
  • Predictable replacement of the sliding elements


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I would be happy to answer your questions personally

Stefan Loockmann-Rittich

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