Durable Heavy Duty Slewing Bearing for Construction Machinery
Slewing bearing is large turntable bearing which can accommodate a combined load, i.e., axial, radial loads and tilting moment. These slewing rings are usually provided with holes for fixing bolts; slew bearing seals, internal, external or no gear; lubrication holes and seals, which allow a compact and economical arrangement. According the slew bearing design, they are single or double row ball, single row cross roller, three row roller slewing ring type, which are widely used in construction machinery, marine equipment, engineering machinery, light industrial machinery, metallurgical machinery, medical machinery, industrial machinery and other industries.
Slewing bearing is called the joint of machine, which is used to connect the working part and supporting part. It is widely used in cranes, such as wheeled crane, crawling crane, gantry crane, tower crane and truck mounted crane.
Slewing crane and non-slewing crane are used in port, workshop, construction site for material handling, emergency. With slewing bearing, slewing crane has the advantage of larger working area.
Depending on their design, slewing bearings have the following features:
- High load carrying capacity
- High stiffness for rigid bearing application
- Low friction
- Long service life
- Surface protection and corrosion resistance
- Integration of additional features, including:
- Driving mechanism
- Control devices
- Lubrication systems
- Monitoring systems
- Sealing cassettes
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