Publish Time: 2018-05-23 Origin: Site
A slewing bearing or slewing 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 metre 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.
Slewing Ring Bearing Division
For over fifty years Xuzhou Wanda Slewing Bearing has been a state-of-the-art manufacturer of ball and roller bearings of radial and thrust configurations, and we consistently partner with industry and government by meeting their needs with quality products and fast, responsive service.
Xuzhou Wanda Slewing Bearing is a global supplier of bearings and related products. The objective has always been to offer a product line that meets the specific needs of our customers. Xuzhou Wanda Slewing Bearings are high-quality, large-size, standard and custom bearings. Xuzhou Wanda Slewing Bearing produces and carries a full line of ball and roller bearings up to 100 inches OD.
Xuzhou Wanda Slewing Bearing manufactures bearing products for OEM’s and aftermarket customers in a variety of industries such as oil and gas, wind energy, steel, pulp and paper, mining and aggregate, automotive, railway, machine tool, and general industry. We can also rebuild and recondition any bearings within our size range.
Guarantee
Xuzhou Wanda Slewing Bearing guarantees that any bearing we manufacture or rework is free from defects in workmanship or material. Any bearing which is proven to be defective within one year from date of purchase will be replaced or reworked free of charge if the defective bearing is returned, charges prepaid, to Willow Grove, PA and the bearing is found to have been properly installed, lubricated, and used.
Slewing Ring Bearings reliably support radial, axial and moment loads.
Xuzhou Wanda Slewing Bearing slewing ring bearings are precision machined and manufactured using the highest quality materials. They are engineered to withstand the maximum allowable static and dynamic axial, radial and moment loads, providing a superb combination of weight, performance, size and sustainability.
Our slewing ring line is highly flexible with configurations to suit almost any application or envelope size.
Their customizable design allows XZWD to fill many of your equipment requirements:
• 4 Point Ball or Cross Roller types.
• Single, Double and Triple row configurations.
• Geared Inner and Outer raceways.
• As small as 4” (100mm) and up to 100” (2500mm) bores.
Other key features include:
• Rectangular cross sections that incorporate alternate mounting/lubrication features.
• Low profile cross sections, when space is at a premium.
• Sealing features for long life cycles in the harshest environments.
Xuzhou Wanda Slewing Bearinghas a long history of slewing ring manufacturing for several industries such as wind turbines, automated assembly line equipment, cranes, mill equipment, mining and aggregate, military applications and general industry.
Rebuild for Maximum Value
Xuzhou Wanda Slewing Bearing can typically rebuild a large bearing and deliver it to you in a fraction of the time required to manufacture a new bearing. We also provide emergency repair service (sometimes within a 24-hour period). What’s more, you can save up to 60% of the cost of a new bearing. With companies looking ever closer to the bottom-line, we help customers with large bearing investments maximize the service lifetime of their bearings and their heavy machinery.
Some companies schedule planned reconditioning of critical bearing components to ensure business operations stay on schedule at maximum output. This can achieve a savings of as much as 60% compared to building a new bearing. This is especially true for large bearings.