slewingring swingbearing excavatorbearing heavyequipmentparts slewingbearingmaintenance

• November 07. 2026

The swing bearing, also known as slewing bearing, is the critical component that lets an excavator rotate its upper structure smoothly. It carries heavy axial, radial and tilting loads all day long. With constant shock, dust, water intrusion and poor lubrication, it will wear out gradually. If you ignore early warning signs, you may face sudden breakdown, costly repair and longer downtime. Below a...

• November 10. 2026

If you are tired of frequent downtime and costly repairs on your construction machine, choosing a high quality slewing bearing matters a lot. Many equipment owners only check the part number and ignore material heat treatment and sealing structure, which leads to early failure of the slew ring. A good excavator swing bearing features forged rings hardened raceways and heavy duty rubber seals to bl...