Slewing bearings can take thrust load, moment load and radial load. Our slewing bearing can be divided into three types; ball types: ball type, roller type and ball-roller type. In structure, the bearing can be single-row, double row or triple-row. Type of structure, there are single-row, double-rows and three-rows. In power transmission, the bearing can be with gear teeth (on outer ring or inner ring) and without gear teeth. In dust and grease proof, they can be with seals or without seals. In mounting convenience, they can be with flange or bolt bores or without. Our slew bearing OD is from 200mm to 5,000mm.
To "slew" means to turn without change of place; a "slewing" bearing 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.
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.
Packaging: Polybag + box +carton , individual box packing or industrial standard packing.
Delivery time: within 3-15workdays after receiving your payment
Original excavator bearing for NTN