Slewing bearing is same as typical bearings, it assembly by rings and rollers. However, compare to normal bearings, slewing bearing includes a lot of dissimilarities. Normally, slewing bearing offers huge dimensions, OD usually betwwen 0.4m to 10m, plus some even to 40m. Under normal conditions, slewing bearing working in a low speed, high load state. Slewing bearing comes with installation holes, lubricating holes and sealing device. It has compact stucture, convenience to guide rotate, simple unit installation and easy maintenance etc.
EPT slewing ring bearings are available in many patterns with internal, external or without gear. The low cross section, major load capacity and integrated gear make these bearings ideal structure components. Slewing ring bearings are trusted in engineering machinery, mining products and several other industrial products.
Slewing bearing is certainly a big of bearing with distinctive structure that could 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. Widely used in lifting machinery, engineering machinery, transmission machinery, mining and metallurgy machinery, medical gear and radar, deliver, wind power and additional industries.
Slewing Ring Bearings are precision built to manage many different load types which include radial, axial, moment or perhaps a combination of each. Their unique construction and compact footprint help facilitate ease of mounting and repair. Seals are normal for retaining grease and keeping contaminants out. Re-lubricating holes are integrated into the design, evenly distributed around the bearing, to allow for grease replenishment which helps reduce friction and wear and extend bearing life.
The Single-Row Ball type Slewing Band have four points with one row. They could bear axial load, radial load and tilting minute as well. And they are composed of two seat bands, which design in small structure and light weight, steel ball contact with the circular raceway at four points. There happen to be three types of this kind of single row 4 items contact ball slewing bearing: without gear bearing (non tooth), exterior gear bearing (external tooth), and Internal gear bearing (internal tooth).
EPT slewing ring bearings can support radial, axial and tilting second loads acting either singly or in combination and in virtually any direction. Therefore, you’ll be able to replace the combination arrangement of radial and axial bearings by an individual bearing, that will measurably reduce the overall expense and simplify the design. Slewing rings happen to be sealed on both sides, lubricated with top quality grease, can be relubricated via lubrication nipples and are particularly easy to install.
The ball size is normally chosen with respect to the axial load and radial load coming on the Slewing bearing. It varies from 10 mm to 60 mm. The loads happen to be calculated using software to ensure correct variety for the slewing bearing. The material variety is done predicated on the source parameters and the necessity of the customer. Generally, the materials selected for slew band is certainly C45 and En19 or 42CrMO4. Excavator and crawler applications as well as the boom cranes generally possess the material as 50Mn. The balls are created from High chromium steel, generally denoted by 100Cr6 and the cages are constructed with either nylon 6 or nylon 66 according to the load conditions.
We makes slewing band bearings for use in many different demanding industries such as heavy equipment, oil and gas, medical systems, renewable energy and semiconductor production. These versatile bearings will be specifically designed to handle large, heavy, slow-oscillating loads like those in cranes, booms and lifts, yet can also be used in high-reliability applications such as for example CT scanners and professional positioners.