Slewing bearing is same as common bearings, it assembly by rings and rollers. On the other hand, compare to normal bearings, slewing bearing has a lot of differences. Normally, slewing bearing provides huge dimensions, OD usually betwwen 0.4m to 10m, plus some even to 40m. Under normal conditions, slewing bearing functioning in a minimal speed, high load state. Slewing bearing includes mounting holes, lubricating holes and sealing system. It has small stucture, convenience to steer rotate, simple unit installation and easy maintenance etc.
EPT slewing ring bearings can be found in many patterns with internal, external or without gear. The reduced cross section, weighty load potential and integrated gear make these bearings great structure components. Slewing ring bearings are widely used in building machinery, mining tools and many other industrial products.
Slewing bearing is certainly a big of bearing with exceptional structure that may bear integrated load just like axle load, radial load and overturning load. It combines support, rotating, transmitting, fixed, sealed, anti-corrosion and other functions into one device. Trusted in lifting machinery, development machinery, transmitting machinery, mining and metallurgy machinery, medical gear and radar, ship, wind power and various other industries.
Slewing Ring Bearings are precision built to manage a variety of load types including radial, axial, moment or a combination of every. Their particular construction and compact footprint help facilitate ease of mounting and protection. Seals are typical for retaining grease and keeping contaminants out. Re-lubricating holes are incorporated into the design, evenly distributed around the bearing, to allow for grease replenishment which facilitates reduce friction and use and extend bearing your life.
The Single-Row Ball type Slewing Band have four points with one row. They could bear axial load, radial load and tilting second at the same time. And they are made up of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four details. There are three types of this sort of single row 4 tips get in touch with ball slewing bearing: without equipment bearing (non tooth), exterior gear bearing (external tooth), and Internal equipment bearing (internal tooth).
EPT slewing ring bearings may support radial, axial and tilting moment loads acting either singly or in combination and in any direction. Therefore, you’ll be able to replace the combination arrangement of radial and axial bearings by a single bearing, that will measurably reduce the overall price and simplify the look. Slewing rings will be sealed on both sides, lubricated with top quality grease, can be relubricated via lubrication nipples and are particularly simple to install.
The ball size is generally chosen with regards 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 selection is done based on the type parameters and the necessity of the client. Generally, the material selected for slew ring is usually C45 and En19 or 42CrMO4. Excavator and crawler applications as well as the boom cranes generally have the materials as 50Mn. The balls are constructed of High chromium metal, generally denoted by 100Cr6 and the cages are constructed with either nylon 6 or nylon 66 depending on the load conditions.
We makes slewing band bearings for use in a variety of demanding industries such as heavy equipment, oil and gas, medical systems, renewable energy and semiconductor developing. These versatile bearings are specifically made to handle large, large, slow-oscillating loads like those in cranes, booms and lifts, yet may also be used in high-accuracy applications such as CT scanners and industrial positioners.