Schaeffler has patented a pivot cradle bearing for axial piston machines, featuring a bent cage segment that guides rolling bodies. The design includes a synchronization device with a pivoting lever and an asymmetrical articulated bearing, enhancing the relative movement between pivotable bearing parts. GlobalData’s report on Schaeffler gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Schaeffler, Crankshaft ball bearings was a key innovation area identified from patents. Schaeffler's grant share as of July 2024 was 32%. Grant share is based on the ratio of number of grants to total number of patents.
Pivot cradle bearing for axial piston machines
The granted patent US12071981B2 describes a pivot cradle bearing designed to facilitate the relative movement of two pivotable bearing parts. Central to this invention is a bent cage segment that houses rolling bodies, enabling smooth motion between the bearing parts. The synchronization device, which ensures coordinated movement, features a pivoting lever mounted within the cage segment. This lever is supported by an articulated bearing that is asymmetrical relative to a central tangential plane of the cage segment. The articulated bearing consists of a cylindrical portion and a tapering portion, with the cylindrical part conforming to the pivoting lever. Additionally, the design includes both symmetrical and asymmetrical sliding bearing pieces, as well as an annular recess that secures the pivoting lever within the cage segment.
The patent also outlines a method for producing the synchronization device of the pivot cradle bearing. This process involves creating a cage segment blank with a specific through-opening and inserting a pivoting lever with a spherical inner sliding bearing piece. The method includes heating and deforming the cage segment blank to secure the pivoting lever in place. Notably, the cylindrical portion of the through-opening is designed to match the diameter of the spherical portion of the pivoting lever. The patent further specifies that the cage segment can be made from plastic and that the outer sliding bearing piece may be formed in one piece directly by the cage segment, enhancing the structural integrity of the assembly.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
