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The new SKF pitch and yaw bearings have special surface treatments to protect against corrosion, and false-brinelling is limited by specially selected grease. A new, automatic lubrication system that distributes small amounts of grease to all lubrication points for up to six months, has been fitted, and this reduces maintenance costs and lubricant consumption. After six months only the central reservoir needs refilling. A patented seal solution avoids grease leakage and water ingress, and withstands ring deformations under load as well as internal grease overpressure. In addition, the bearings have a two-layer coating that provides long-lasting corrosion protection even in severe weather conditions. The SKF range of pitch and yaw slewing bearings are available in different designs: single row and double row four point contact ball bearings. Pitch bearings can be supplied with or without integrated gearing. Yaw bearings can be supplied with an integrated gear ring, enabling direct drive and eliminating the need for an additional gear ring.
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