Internal-toothed slewing ring 01 Series
ballsingle-rowfor public works, excavators and cranes

internal-toothed slewing ring
internal-toothed slewing ring
Add to favorites
Compare this product
 

Characteristics

Teeth
internal-toothed
Rolling element
ball
Geometry
single-row
Applications
for public works, excavators and cranes, for wind turbine
Other characteristics
track
Inner diameter

Max.: 4,272 mm
(168.2 in)

Min.: 222 mm
(8.7 in)

Outer diameter

Max.: 4,726 mm
(186.063 in)

Min.: 408 mm
(16.063 in)

Width

Max.: 174 mm
(6.85 in)

Min.: 70 mm
(2.756 in)

Description

A slewing bearing or slew[ing] 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. (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 resemble oversize aircraft control surface bearings. 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.

Catalogs

No catalogs are available for this product.

See all of Xuzhou Wanda Slewing Bearing Co., Ltd.‘s catalogs
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.