Easy To Maintain Slewing Bearing/slewing Ring/turntable Bearing For Aerial Work Truck

We are making and supplying Slewing Bearing/Slewing Ring/Turntable Bearing For Aerial Work Truck in Luoyang, Henan, China. A 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.
Aerial work truck
Single-row four-point contact ball slewing bearings are usually used in high altitude vehicles with compact structure. This kind ofslewing bearing can bear axial force, radial force and tilting moment at the same time, and is widely used in small and medium-sized construction machinery.