JPS5829287Y2 - Angular contact ball bearing - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of an angular contact ball bearing in which the inner ring is formed of two members. Specifically, one of the two members is connected to the orbit of a normal ball bearing. An object of the present invention is to provide an angular ball bearing that can be manufactured at low cost as a whole by not requiring high quality such as a ring.

Next, this invention will be explained with reference to the embodiments shown in FIGS. 1 to 6. 1 is an outer ring of an angular ball bearing;
5 is an inner ring consisting of an inner ring main member 3 and an inner ring auxiliary member 4, and 5 is a ball.

The outer ring 1 has shoulders 12 on both sides of an arc-shaped inner raceway 110.
and 13, and has a similar shape to a normal deep groove type outer ring.

Further, the inner ring main member 3 has a shoulder portion 32 only on one side of the curved outer raceway 310, and has a shape similar to one side of the inner ring of a normal mated inner ring angular contact ball bearing.

The inner ring auxiliary member 4 is arranged so that its side surface 42 is adjacent to the raceway side side surface 33 of the inner ring main member 3, and has a tapered shape that faces the balls 5 on the outside and receives an unexpected thrust load (a thrust load in the opposite direction). A shaped receiving surface 41 is formed.

A gap is provided between the receiving surface 41 and the ball 5 so that they do not touch each other during installation.

FIG. 1 is an example showing the basic structure of the bearing of this invention.

FIG. 2 shows an example in which the bearing of this invention is used in a strut-type suspension system of an automobile, and the inner ring auxiliary member 4 has an inner surface 4.
3 as a threaded surface, it is located adjacent to the inner ring main member 3 by being screwed into the threaded member 10 at one end of the shock absorber 9 of the strut type suspension device, and the inner ring main member 3 is connected to the shock absorber 9. It also serves as a fixing member.

In contrast to the embodiments shown in FIGS. 1 and 2, in which the outer ring 1 and the inner ring main member 3 are separated, FIG. This is an example in which the space between the outer ring 1 and the inner ring main member 3 is sealed, and the outer ring 1 and the inner ring main member 3 are not separated from each other via the seal body 6.

FIGS. 4 to 6 show other embodiments in which the outer ring 1 and the inner ring main member 3 are not separated, similar to FIG. 3.

FIG. 4 shows a cylindrical portion 34 following the raceway 31 of the inner ring main member 3.
, and an elastic ring 7 is fitted into the cylindrical portion 34.

In FIG. 5, the inner ring main member 3 is provided with a cylindrical portion 34 similar to that shown in FIG. 4, and an annular side plate 8 is fixed to the cylindrical portion 34.

Figure 6 shows that by extending the inner ring main member 30 and the curved raceway 31 slightly in the axial direction from the center of the width dimension of the outer ring 1, the inner ring can be made similar to the inner ring with one shoulder of a normal non-separable angular contact ball bearing. A catch portion 35 is provided.

This device is constructed as described above, and the thrust load that constantly acts (in the case of Fig. 1, acts on the inner ring main member 3 from below) is applied to the inner ring main member 3, the balls 5, and the outer ring 1.
The thrust load that acts unexpectedly (acts from the opposite direction) (in the case of Fig. 1, acts from above on the inner ring auxiliary member 4) is borne by the inner ring auxiliary member 4, the balls 5, and the outer ring 1. Therefore, the inner ring auxiliary member 4 does not require a high degree of finishing compared to a normal ball bearing bearing ring, and may have a simple shape.

Further, the material may be a soft metal, or may be a synthetic resin depending on the location of use.

Therefore, it can be manufactured much more cheaply than ordinary ball bearing bearing rings.

Furthermore, the inner ring auxiliary member 4 may have a shape that also serves as another mechanical element, as shown in the embodiments of FIGS. 2 to 6, thereby reducing the cost of the entire bearing device.

Furthermore, if the non-separation means shown in the embodiments shown in FIGS. 3 to 6 are adopted, the outer ring 1, the inner ring main member 3, and the balls 5 can be handled as one, which is extremely advantageous for transportation and assembly work. It is.

The angular ball bearing of this invention can bear thrust loads in both directions with a single piece, has a larger load capacity than normal deep groove ball bearings, and can be manufactured at a much lower cost than normal mated inner ring angular ball bearings. It is particularly advantageous to use it in the upper fulcrum bearing of a strut-type suspension in a motor vehicle.

It goes without saying that the materials and shapes of the outer ring 1, the inner ring main member 3, and the inner ring auxiliary member 4 may be changed as appropriate within the scope of the utility model registration claims.

Furthermore, the material and shape of the seal body 6, the means for fixing the seal body 6 to the outer ring 1, the shape of the seal portion, etc. are not limited.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing the basic structure of the bearing of this invention, Fig. 2 is a longitudinal sectional view showing an example of the bearing of this invention implemented in a strut-type suspension system for an automobile, and Figs. The figure is a longitudinal cross-sectional view showing another embodiment of the bearing shown in FIG. 8 is an elastic ring, 8 is an annular side plate, and 9 and 10 are parts of the shock absorber of the strut type suspension system.

Claims (3)

[Scope of utility model registration request] (1) An outer ring 1 having a curved raceway 11 having shoulders 12 and 13 on both sides thereof, and a curved raceway having a shoulder 32 only on one side that is in angular contact with the curved raceway 11 of the outer ring and constantly receives sliding load. 31 and the inner ring auxiliary member 4 adjacent thereto, which makes angular contact only when receiving a sliding load in the opposite direction, and which normally has a gap between the bearing surface 41 that faces the ball. An angular ball bearing having an inner ring 2 consisting of. (2) The angular ball bearing according to claim (1), in which the bearing surface 41 facing the balls of the inner ring auxiliary member 4 is a conical surface. (3) An angular ball bearing according to claim 1 or 2, in which the inner surface of the inner ring auxiliary member 4 is a threaded surface.