Overview of the classification and characteristics of wind power bearings-NEWS-FV BEARING INDUSTRIES

Overview of the classification and characteristics of wind power bearings

Aug 16, 2021

Bearings are the core components of wind turbines. 

Wind power bearings range from bearings used in blades, main shafts and yaw, to high-speed bearings used in gearboxes and generators。

The main features of wind power bearings

1. The use environment is harsh;

2. High maintenance cost;

3. High life expectancy is required;

Classification of wind power bearings

Bearings for wind turbines mainly include: yaw bearings, pitch bearings, main shaft bearings, gearbox bearings, and generator bearings. 

Namely: pitch bearing, yaw bearing, transmission system bearing (main shaft and gearbox bearing).

Generator bearings

Bearing types: deep groove ball bearings, angular contact bearings, etc.

Working condition characteristics: high speed (1000-1500rpm), high temperature (90-120℃) and heavy load.

Requirements for grease: excellent shear stability, good oxidation stability, good magic resistance, excellent low-temperature starting performance, etc.


Main bearing

Bearing types: tapered roller bearings, spherical bearings, Three row cylindircal roller bearingetc.

Working conditions characteristics: low speed (<25rpm), wide temperature, heavy load and large changes, vibration, high humidity.

Requirements for grease: excellent anti-wear performance, good oxidation stability, excellent low temperature starting performance, good water resistance, etc.

Pitch/Yaw Bearing

Bearing type: four-point contact ball bearing, etc.

Working condition characteristics: stop more than turn, wide temperature, heavy load, vibration, high humidity.

Requirements for grease: excellent anti-corrosion and fretting resistance, excellent low-temperature starting performance, good water resistance, good oxidation stability, etc.

Each wind turbine equipment uses 1 set of yaw bearing (slewing bearing), 3 sets of pitch bearing (slewing bearing) to generate electricity Machine bearings (deep groove ball bearings, cylindrical roller bearings) 3 sets of Main bearings (spherical roller bearings) 2 sets or Three row cylindrical roller bearing 1set, a total of 8 sets or  9 sets.

VK Industry is professional at wind power bearing , welcome to inquire sales@vk-industry.com

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