Lubrication and sealing of slewing bearing raceway systems

Slewing bearing raceway systems The slewing bearings are lubricated on the raceway through the oil nozzle prior to delivery using high quality EP2 lithium based grease which reduces friction and wear and acts as a sealant and preservative. This is the key factor for long service life and trouble-free operation of rotary bearings. Special lubricants can be used on request under special operating conditions.

Lip seals shall be provided on both upper and lower sides of the slewing bearings to prevent contamination of the raceway system and deterioration of grease. These bearings are installed to provide adequate protection for the many slewing ring bearings from dust and foreign matter entering the equipment and to prevent premature wear and failure.

Sealing profiles can be used with multiple lips to be used in special adverse conditions. The use of a special configuration prevents the inflow of foreign matter and the leakage of lubricant into the sealant profile. This is always important when cleanliness is a high priority. Because of its good sealing and reliability. It can be used outdoors for a long time. It’s also has high wear resistance and good softness at low temperatures. Sealant profiles made from FKM should be used at high temperatures and in extreme climates.

In addition, steel seals or steel labyrinths can be used as additional protection for all plastic sealed profiles. These seal changes are most beneficial to strip mining because they provide greater protection against dust and stone erosion that is usually required.

Slewing bearing raceway systems  When choosing suitable seals to use, the speed and contact medium must be considered. Seals with axial and radial sealing edges can therefore be used. In addition, both the inner and outer circumferences of the seal profile may depend on the given clearance.