Rolling bearing with multi-component plastic bearing ring

The rolling bearing design with a softer sliding ring and harder stabilizing ring addresses friction and maintenance issues, providing low-friction, robust, and cost-effective operation for various rotational speeds without lubrication.

JP7887099B2Active Publication Date: 2026-07-09

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Filing Date
2022-05-25
Publication Date
2026-07-09

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Abstract

The invention relates to a rolling bearing, in particular a ball bearing, comprising an inner ring and an outer ring in the form of two bearing rings mounted so as to be rotatable relative to one another about an axis, each constituting a guide part of a guide provided between the bearing rings, the guide part surrounding the axis, the guide part constituted by the inner ring being radially opposed to the guide part constituted by the outer ring, in which rolling elements, in particular balls, are distributed around the axis and abut against the two guide parts such that the rolling elements roll on the two guide parts when the bearing rings rotate relative to one another about the axis, at least one of the bearing rings comprises a sliding ring constituting the guide part of the bearing ring and a stabilizing ring abutting the sliding ring so as to surround the axis, the sliding ring being made from a first plastic material and the stabilizing ring being made from a second plastic material, the first plastic material being softer than the second plastic material, in particular the rolling elements being mounted without lubricant in the guides.
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