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US 10,323,684 B2Granted
Cage-less ball roller thrust bearing
AssigneeSchaeffler Technologies AG & Co. KG
InventorsCharles Schwab, James Brown, Joseph T. Griffin
Life of this patent
Estimating the term…
Abstract
A cage-less thrust bearing includes first and second washers concentrically arranged such that the washers cooperate to define a ball chamber having a first pair of opposing axially extending race surfaces and a second pair of opposing radially extending race surfaces. A plurality of balls are disposed in the ball chamber without being retained by a cage. Each ball is configured to ride on each of the race surfaces.
Claims17
A cage-less thrust bearing comprising:
- a cup washer including inner and outer axially extending flanges interconnected by a radially extending sidewall that defines a first thrust surface, wherein the flanges and sidewall are arranged to form a C-shaped cross section;
- a collar washer including a radially extending sidewall that defines a second thrust surface and an axially extending collar projecting from the sidewall, wherein the cup washer and the collar washer are concentrically arranged to define a ball chamber, and an inner diameter of the inner flange is seated on an outer diameter of the collar;
- and
- a plurality of balls disposed in the ball chamber, the balls not being retained by a cage so that adjacent ones of the balls are configured to contact each other.
1 more element
A cage-less thrust bearing for a transmission comprising:
- a collar washer including an axially extending inner collar and a radially extending first sidewall that extends radially outward from the inner collar and defines a first thrust surface;
- a cup washer including concentric inner and outer flanges interconnected by a radially extending second sidewall defining a second thrust surface, the cup washer being concentrically arranged with the collar washer such that one of the inner and outer flanges is seated on the collar, wherein the collar washer and the cup washer cooperate to define a ball chamber bounded axially between the first and second sidewalls and radially between the inner and outer flanges;
- and
- a plurality of balls disposed in the ball chamber with each ball having an associated first race surface defined on the outer flange, an associated second race surface defined on the inner flange, an associated third race surface defined on the first sidewall, and an associated fourth race surface defined on the second sidewall.
1 more element
A cage-less thrust bearing comprising:
- first and second washers concentrically arranged such that the washers cooperate to define a ball chamber having a first pair of opposing axially extending race surfaces and a second pair of opposing radially extending race surfaces, wherein the first washer defines at least one tab configured to engage with the second washer to prevent axial separation of the first and second washers;
- and
- a plurality of balls disposed in the ball chamber without being retained by a cage, each ball being configured to ride on each of the race surfaces.
Dependencies are inferred from the claim text.