Slewing bearing

SLEWING BEARING
Slewing bearing is usually a big of bearing with exceptional structure that can bear integrated load like axle load, radial load and overturning load. It combines support, rotating, tranny, fixed, sealed, anti-corrosion and different functions into one product. Widely used in lifting machinery, development machinery, transmitting machinery, mining and metallurgy machinery, medical products and radar, deliver, wind power and additional industries.
Slewing bearings could be divided into many different types according to their unique structural forms, such as 4 point contact ball slewing bearing ,solitary row cross roller slewing bearing, dual row contact ball slewing bearing, three row roller slewing bearing etc. Each type has different qualities according to its style and structure, rendering it well suited for specific applications. For example Single row four stage get in touch with ball slewing bearings happen to be simple in structure, nonetheless they can bear weighty radial load, and can also bear a number of axial and overturning loads. However, when the device has substantial requirements on the precision and rigidity of the bearing, or the bearing must meet up with the zero clearance or negative clearance operating circumstances, the cross cylindrical roller slewing bearing could be the correct choice.
Therefore, when selecting slewing bearings, the following aspects should be considered:
· Precision
When the situation of precision is to select the dominant parameters, we usually select the cross roller slewing bearing since it has smaller sized clearance and higher accuracy.
· Load
How big is load is among the important factors in determining the bearing size of slewing bearings. They can be utilised in an array of applications where in fact the load size and route may change.
· Operating temperature
Generally, the allowable operating temperature of a slewing band depends mostly on the isolation gasket and the sealing material used for lubrication. The allowable working temperature ranges from -25 to + 70°C. If slewing bearings must operate at extreme temps, please get in touch with our engineer .
· Vibration
For applications involving vibration, pre-loaded four-point contact ball slewing bearings and cross cylindrical roller slewing bearings are available.
· Turning speed
Four-point contact ball slewing bearings produce a lesser amount of friction than cross-cylindrical roller slewing bearings, therefore the four-point contact ball slewing bearings also have higher rotational speeds.
· Seals
Sealing is essential to the performance of slewing bearings. Skilled seals used in slewing bearings offer good protection against wetness and pollution, and make sure that grease plays an essential part. If slewing bearings operate under extreme circumstances, such as exposure to normal water, vacuum, corrosive contaminants or radiation, please speak to our technical engineers for specific solutions.
Kaydon slewing bearings
Kaydon slewing bearing solutions are perfect for:
Optimal economy in a given envelope dimension
Heavy-duty applications needing significant load-carrying capacity
Models where precise positioning is crucial
The unique requirements of wind turbines
Kaydon’s slewing bearings give you a wide variety of solutions for the most demanding features in a variety of applications, including:
Aerospace and defense
Heavy equipment
Industrial machinery
Medical systems
Mining
Oil & gas
Renewable energy
Robotics
Semiconductor manufacturing equipment
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Bearing selector

The Kaydon slewing bearing selector allows you to search our standard slewing bearings by part number or bearing requirements. Benefits contain load charts and downloadable 3D drawings.

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