Kinematic thrust bearing with balls and rollers专利检索-偶数场图形技术专利检索查询-专利查询网

Kinematic thrust bearing with balls and rollers

阅读：881发布：2023-01-06

专利汇可以提供Kinematic thrust bearing with balls and rollers专利检索，专利查询，专利分析的服务。并且A novel thrust bearing is disclosed in which rotation is accompanied by a minimum of axial motion by reason of the averaging of defects over the various elements making up the bearing. A first race is partially filled with about two-thirds of a full complement of balls, the number of balls being odd. These balls are spaced apart by an equal odd number of grooved rollers which are held up out of contact with the race by the balls. A second row of balls each engaging two of the rollers and an upper race complete the novel structure. The construction has no resistance to radial displacement or tilting and must be used in combination with radial bearings. The construction with an even number of rollers is unstable. The construction is shown for the introduction of controlled and very small amounts of cyclic irregularities by tilting of one race.，下面是Kinematic thrust bearing with balls and rollers专利的具体信息内容。

权利要求

1. An axial antifriction bearing comprising three series of rolling parts, between a first circular ball race open in a first axial direction and lying in a plane perpendicular to that direction, and a second circular ball race substantially coaxial to, and parallel to, said first race and facing it open in the opposite axial direction, wherein the first series of parts is an odd number, greater than one, of balls engaging said first race, said second series of parts is an equal odd number of balls engaging said second race, and said third series of parts is an equal odd number of rollers each of said rollers being supported by four of said balls, two balls from said first series and two balls from said second series, by the contact of said four balls with a circular groove around the outer surface of said roller.

2. An axial antifriction bearing as defined by claim one wherein said races and said groove are circularly toroidal in form.

3. An axial antifriction bearing as defined by claim one wherein one of said races is circularly toroidal in form.

4. An axial antifriction bearing as defined by claim one wherein said groove comprises a circularly toroidal surface for contacting at least two of said four balls.

5. An axial antifriction bearing as defined by claim 4 wherein said groove comprises a pair of conical surfaces for contacting the pair of said four balls not in contact with said toroidal surface.

6. A bearing as defined by claim one in further combination with means for connecting said first race to a base, means for connecting said second race to other apparatus, and radial bearing means to constrain said first and second races to relative rotation about their common axis.

7. A bearing as defined by claim one in further combination with means for adjusting the tilt of one of said races relative to said first axial direction in amount and in direction.

8. A bearing as defined by claim one wherein each of said balls is supported at six points of contact, said six points of contact defining three lines for each of said balls, a first line defined by the pair of points of contact with one of said races, a second line defined by the pair of points of contact with one of said rollers, and the third line defined by the pair of points of contact with another of said rollers, all of said lines converging on a point on the axis of said races.

9. A bearing as defined by claim one wherein the points of contact between said balls and said races and rollers describe on the surfaces of said balls, rollers, and races, a plurality of circles, each of said circles defining a line normal to its plane and through its center, wherein all of said lines are designed to converge at a point, and substantially so converge.

10. A bearing as defined by claim one wherein the points of contact between said balls and said races and rollers describe on the surfaces of said balls, rollers, and races, a plurality of tracks which are substantially circles, each of said circles defining a line normal to its plane and through its center wherein all of said lines converge to a center, substantially a point.

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Kinematic thrust bearing with balls and rollers

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