Page 10 of catalogue Bearing Technology for Wind Turbines of Schaeffler Technologies GmbH & Co. KG

Rolling Bearing Lubrication

Critical factors for service life

In addition to highly developed design and precise manufacturing practice, the reliability and operating life of a bearing is influenced to a large extent by lubrication. Selection of the correct grease, the performance capacity of the oil, the effect of additives, cleanliness in relation to contaminants and adherence to the specified lubrication intervals contribute to determining the quality of the system.

Grease The main bearings and gearbox bearings in wind turbines are supplied with special Arcanol rolling bearing greases. These greases were developed in partnership with renowned lubricant manufacturers and subjected to comprehensive series of tests before approval. They thus offer consistently high quality and optimum lubrication characteristics. The F’IS range includes various lubricators of the Motion Guard series that automatically feed the correct quantity of fresh grease to the lubrication points. Depending on the lubrication system, dispensing times between 1 day and 24 months can be set for up to six lubrication points. As a result, less personnel work is required and security in relation to lubrication of the rolling bearings used is significantly increased.

The advantages: • fully automatic and almost maintenance-free • precise grease quantities, no undersupply or oversupply • extended bearing life • higher cost-effectiveness due to economical, environmentally-friendly metering Oil Recirculating oil lubrication with a filter offers the optimum supply of lubricant to the contact points. In condition monitoring of important oil parameters such as operating temperature, contamination, water content and viscosity, the filter should also be included.

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