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Slewing Bearings

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Double row ball slewing bearing/External gear type
  • Model No.:  Double row ball slewing bearing/External gear type
Advantages 1 External Gear Type Slewing Bearing can bear axial radial load and tilting moment load simultaneously 2 Ball Slewing Bearing External Gear Type can be combined with pinion planetary gearbox and motors 3 Custom design is available non...
Double row ball slewing bearing (Internal gear type)
  • Model No.:  Double row ball slewing bearing (Internal gear type)
Product description Slewing Bearing Features Double row ball slewing bearings Internal gear type have more features Compact structure reliable guide simple installation and easily maintenance Light series slewing bearings are generally available...
Single-row Four Point Contact Ball Slewing Bearing
  • Model No.: Single-row Four Point Contact Ball /Internal gear
Technical staff at RunFine BEARINGS is at your service to provide assistance when selecting the most suitable Four Point Slewing Bearing Internal Gear for your application The most common applications are excavators concrete pumps boom lifts and man...
Single-row Four Point Contact Ball  /External gear
  • Model No.: Single-row Four Point Contact Ball /External gear
The RunFine Single row Contact Ball External gear must support and transmit the operating loads of the structure to which it is connected furthermore RunFine slewing bearings must guarantee the application s required degree of precision compliance...
Four Point Contact Ball with flange/Non-gear teeth
  • Model No.: Single-row Four Point Contact Ball with flange /Non- gear teeth
Single Row Non Gear Teeth Bearing are necessary when in a given machine or system one structural part needs to rotate in the opposite direction to another along a fixed axis Single row Slewing Bearing with Flange whilst guaranteeing the axial and...
Single-row Four Point Contact Ball Type
  • Model No.: Single-row Four Point Contact Ball Type /Internal gear
The assembly is much more compact and its hollow centre permits the installation of driving mechanisms and the passage of various control devices the superstructures of the rotating part are more easily accessible The small difference in height...
Single Row External Gear Slewing Bearing
  • Model No.: Single-row Four Point Contact Ball Type /External gear
Integral synthetic rubber seals effectively protect the bearing from the ingress of foreign matter as well as prevent the escape of grease Compared to the traditional pivot arrangement Single row External Gear Slewing Bearing have many design and...
Contact Ball Type Slewing Bearing/Non-gear
  • Model No.: Single-row Four Point Contact Ball Type /Non-gear
Single row Contact Ball Type Non gear are large sized bearings specifically designed to accommodate oscillating movements They are comprised of an inner ring and an outer ring one of which usually incorporates a gear Contact Ball Type Slewing...
Crossed Cylindrical Roller Slewing Bearings
  • Model No.: Crossed Cylindrical Roller Slewing Bearings
Crossed Cylindrical Roller Slewing Bearings are generally manufactured in very large diameters For that reason on site inspection capabilities is necessary Backed by years of Roller Slewing Bearing application experience and manufacturing knowledge...
China Slewing Bearings Suppliers
Compared to other rolling-element bearings, Slewing Bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.
A slewing bearing or slewing ring is a rotational Rolling-Element Bearing or plain bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill.
Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.
Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the platform relative to the base.
As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing. Instead, a hydrostatic bearing with pumped oil flow may be used.