Long-life bearing technology for PV systems

Strong UV radiation, heat, wind and dust: PV plants have to function under extreme environmental conditions. With over 18 years of experience in the solar sector, we offer standard and customised solutions that meet precisely these requirements. Our spherical, plain and linear bearings made from high-performance polymers are used successfully in PV tracker systems, fixed installations, floating photovoltaic and cleaning systems, for example.

The advantages of our bearings:

• UV-resistant, lubrication and maintenance-free
• Quiet operation without torque fluctuations
• Extremely low coefficient of friction due to tribo-optimised plastics
• Suitable for tight installation spaces
• Insensitive to dirt and dust
• Long predictable service life
• Low cost

NEW: pillow block bearing igubal® ESQM 2.0

More fun in the sun! With our ESQM 2.0, we take our tried-and-tested pillow block bearing for tracking solar modules to the next level, making it even more robust, more compact and easier to install:

• Three times the UV resistance thanks to optimised housing and spherical ball material
• 20mm lower installation height due to the sheet metal extender crossbar on the upper part of the housing
• Recesses for guiding cables along the profile
• Easier assembly due to U-alignment of the spherical ball and pins on the lower housing, which prevent the bearing from slipping
• Static radial load: at 0° angular compensation = 50kN; at 9° = 25kN

Solar pillow block bearings convince in the lab test

In the company's own 3,800m2 igus test laboratory, the service life, wear resistance and load capacity of igubal pillow block bearings for solar modules were examined under real loads of the daily motion sequence, simulated in a time-lapse.

The number of movements achieved under a load of 1.5 tons corresponded to a service life of 72 years.