Slewing bearing is same as regular bearings, it assembly by rings and rollers. On the other hand, compare to normal bearings, slewing bearing includes a lot of distinctions. Normally, slewing bearing offers huge dimensions, OD usually betwwen 0.4m to 10m, plus some even to 40m. Under normal conditions, slewing bearing operating in a low speed, high load state. Slewing bearing comes with mounting holes, lubricating holes and sealing device. It has small stucture, convenience to guide rotate, simple unit installation and easy protection etc.
EPT slewing ring bearings can be found in many patterns with internal, external or perhaps without gear. The low cross section, weighty load capability and integrated gear make these bearings great structure components. Slewing band bearings are trusted in structure machinery, mining equipment and many other industrial products.
Slewing bearing can be a large of bearing with special structure that can bear integrated load just like axle load, radial load and overturning load. It combines support, rotating, transmission, fixed, sealed, anti-corrosion and additional functions into one unit. Trusted in lifting machinery, building machinery, transmitting machinery, mining and metallurgy machinery, medical devices and radar, ship, wind power and different industries.
Slewing Ring Bearings happen to be precision built to manage a number of load types which includes radial, axial, moment or a combination of every. Their unique construction and compact footprint help facilitate simple mounting and protection. Seals are standard for retaining grease and keeping contaminants out. Re-lubricating holes are integrated into the design, evenly distributed around the bearing, to permit for grease replenishment which facilitates reduce friction and dress in and extend bearing existence.
The Single-Row Ball type Slewing Ring have four points with one row. They could bear axial load, radial load and tilting moment simultaneously. And they are made up of two seat bands, which design in small structure and light weight, steel ball contact with the circular raceway at four factors. There are three types of this sort of single row 4 tips contact ball slewing bearing: without equipment bearing (non tooth), exterior gear bearing (exterior tooth), and Internal gear bearing (internal tooth).
EPT slewing ring bearings can support radial, axial and tilting moment loads performing either singly or perhaps in combination and in virtually any direction. Therefore, you’ll be able to replace the combination arrangement of radial and axial bearings by a single bearing, that may measurably reduce the overall cost and simplify the look. Slewing rings will be sealed on both sides, lubricated with high quality grease, can be relubricated via lubrication nipples and so are particularly simple to install.
The ball size is generally chosen with regards to the axial load and radial load approaching on the Slewing bearing. It varies from 10 mm to 60 mm. The loads are calculated using software to make sure correct assortment for the slewing bearing. The material variety is done based on the suggestions parameters and the requirement of the customer. Generally, the material selected for slew band is usually C45 and En19 or 42CrMO4. Excavator and crawler applications plus the boom cranes generally have the materials as 
50Mn. The balls are created from High chromium metal, generally denoted by 100Cr6 and the cages are constructed of either nylon 6 or nylon 66 depending on the load conditions.
We makes slewing ring bearings for use in many different demanding industries such as for example heavy equipment, coal and oil, medical systems, renewable energy and semiconductor manufacturing. These versatile bearings happen to be specifically made to handle large, large, slow-oscillating loads like those in cranes, booms and lifts, yet may also be used in high-reliability applications such as CT scanners and professional positioners.