Slewing Bearing For Sale

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 Slewing bearing or slew[ing] ring is a rotational rolling-element 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. (To "slew" means to turn without change of place.)

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 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.

High Quality New Tower Crane Slewing Ring Bearings Supplier in China

B04144 0.0

Double- Row Ball Slewing Bearings Ring Standard 02 Series

8483.20.40.80 4.5 Inch | 114.3 Mil
0 Inch | 0 Millimete Double Row

My Favoritesslewing Ring Bearing for Robotic Welding System 010.19.720

0.309 M06110
N/A 0808250353408

Slewing Bearings Rings for Semi-Trailer Spare Parts Turntable

0.0 Ball Bearing
NTN 1.063 Inch | 27 Mill

Turntable Slewing Ring Bearing for Textile Machinery 30p. 0273.16.000

0.0 M06110
3.5 N/A

Double-Row Different Ball Diameter Slewing Ring Bearing for Tower Crane

Low Carbon Steel None
44 º 0.27 lb

Factory Manufacture Trailer Parts Double Ball Slewing Bearing Rings Turntable

1.135 Mounted Units &

Port Crane Roller Slewing Bearing for Spare Parts Auto

5.82 Inch | 147.828 0 Inch | 0 Millimete
Flange Block Bearing 0.0

China Factory Trailers Parts Single Row Ball Slewing Bearing Turntables

N/A 35MM Bore; 72MM Roll

Slewing Bearing Rings for Crane High Quality Excavator

10.3 Inch | 260.5 Mi Double Row | Heavy D
Pillow Block 2 Bolt Pillow Block;

Double- Row Ball Slewing Ring Bearings Standard 02 Series

4026677050373 Ball
Bearing 0.0

Slewing Bearing Ring with External Gear Used for Excavator

2 in Maximum of +800
750 fp/min Leaded-Tin Bronze