Pitch bearings

Pitch bearings facilitate the rotation of wind turbine blades relative to the hub, allowing for adjustments in the blade's angle of attack.

Description of Manufacturing Process
Inner and outer bearing races are forged and then turned to final dimensions. Precision milling and drilling is used to create bolt holes and attachment points. The raceway is then ground to final finish requirements and often heat treated.

Description of Supply Chain
Supplied by specialists bearing manufacturers. The bearings are then sent to the turbine integrator for final assembly on the turbine.

Scottish Opportunity
Relevance to Scottish Supply Chain: Low

Scottish suppliers would have to displace well established suppliers. They are typically based in Denmark, Germany, Spain or in east Asia.