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        Cross cylindrical roller slewing bearing

        Cross cylindrical roller slewing bearing

        The LYC cross cylindrical roller slewing bearing can carry axial load, tilting moment and radial load all at the same time. The design and application of the cross cylindrical roller slewing bearings are basically the same as those of the four point contact ball slewing bearing, except that the rolling elements are substituted from balls into rollers and the contact way between the rolling elements and rings is changed from point contact into line contact. Those changes allow for the carrying capacity to be increased, but the wear and the friction moment load are also increased. LYC’s cross cylindrical roller slewing bearings are composed of a inner ring, outer ring, a single row of rollers, cage (spacer), and seal device etc. The LYC cross cylindrical roller slewing bearing can carry different combined forces caused by axial load, tilting moment and radial load in different working condition, by adjusting the quantity of crossed rollers and contact angle. There are integral and separate rings in the structure of LYC cross cylindrical roller slewing bearing. Cages or spacers are usually adopted within design in order to ease friction. The complement of a full set of rollers is usually taken when the load is heavier. However, the greater frictional resistance could cause groove marks around the circle where rollers and raceway contact. This slewing bearing with a design of a full complement of rollers is mainly applied in the condition where a heavier axial load is the primary load, and the requirement for tilting moment and friction moment is not so high.

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