CN205078615U - Nylon retainer structure of bearing - Google Patents

Abstract

The utility model relates to a nylon cage structure of a bearing, which comprises a cage body, steel balls are installed in pocket holes of the cage body, the inner surface of the pocket hole has a groove, and the groove is along the inner arc of the pocket hole The surface is extended and arranged to form a ring-shaped structure; the groove is provided with through holes passing through the cage body, and the through holes are evenly spaced along the ring surface of the groove. In the utility model, grooves are arranged in the pocket holes, and the grooves form heat dissipation grooves for the steel balls, reducing the contact area between the pocket holes and the steel balls, and the grooves are provided with evenly spaced through holes to further reduce wear ,Extended service life.

Description

Nylon cage structure of the bearing

technical field

The utility model relates to the technical field of bearings, in particular to a cage in the bearing.

Background technique

In the prior art, the pocket of the cage of the bearing is a spherical structure. After the pocket is wrapped with steel balls, the contact area between the two is relatively large, so that the friction between the two is relatively large, which will cause serious wear of the steel ball and is prone to The phenomenon of steel ball jamming, the wear of the steel ball and the cage shortens the service life of the bearing.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the applicant has conducted research and improvement to provide a nylon cage structure for bearings, which has low friction with steel balls and has the characteristics of long service life.

In order to solve the above problems, the utility model adopts the following scheme:

A nylon cage structure for bearings, comprising a cage body, the cage body is made of nylon, steel balls are installed in the pockets of the cage body, the inner surface of the pockets has grooves, and the grooves are along the pockets The inner curved surface of the inner arc is extended and arranged to form a ring-shaped structure; the cross section of the groove is a trapezoidal structure, which gradually increases from the center of the pocket hole to the outside of the cage body; The through holes are evenly spaced along the annular surface of the groove.

The technical effect of the utility model is:

In the utility model, grooves are arranged in the pocket holes, and the grooves form heat dissipation grooves for the steel balls, which reduces the contact area between the pocket holes and the steel balls, and the grooves are provided with evenly spaced through holes to further reduce wear ,Extended service life.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a sectional view of the utility model.

In the figure: 1. Cage body; 2. Pocket hole; 3. Steel ball; 4. Groove; 5. Through hole.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model will be further described.

As shown in Figure 1 and Figure 2, the nylon cage structure of the bearing of this embodiment includes a cage body 1, the cage body 1 is made of nylon material, steel balls 3 are installed in the pocket holes 2 of the cage body 1, and the pocket holes The inner surface of 2 has a groove 4, which extends along the inner arc surface of the pocket 2 and forms a ring-shaped structure; the cross section of the groove 4 is a trapezoidal structure, which extends from the center of the pocket 2 to the cage body The outer side of 1 gradually increases; the groove 4 is provided with through holes 5 passing through the cage body 1 , and the through holes 5 are evenly spaced along the ring surface of the groove 4 .

In the utility model, a groove 4 is arranged in the pocket hole 2, and the groove 4 forms a cooling groove for the steel ball 3, thereby reducing the contact area between the pocket hole 2 and the steel ball 3, and the groove 4 is provided with evenly spaced The through hole 5 further reduces wear and prolongs the service life. The cross-section of the groove 4 is a trapezoidal structure, and gradually increases from the center of the pocket 2 to the outside. The purpose is that the side close to the center of the pocket 2 is a small end, which can reduce the load of the groove 4 on the pocket 2 Influenced by the capacity, the side away from the center of the pocket hole 2 is the big end, which can improve the heat dissipation effect.

The above-mentioned embodiments are preferred implementation modes of the present utility model, which are only used to facilitate the description of the present utility model, and are not intended to limit the present utility model in any form. Anyone with ordinary knowledge in the technical field, if they do not depart from this utility model Within the scope of the technical features mentioned in the utility model, the equivalent embodiments that make partial changes or modifications using the technical content disclosed in the utility model, and do not deviate from the technical features of the utility model, still belong to the technical features of the utility model within range.

Claims (1)

1. A nylon cage structure for bearings, including a cage body (1), the cage body (1) is made of nylon, steel balls (3) are installed in the pocket holes (2) of the cage body (1), and its It is characterized in that: the inner surface of the pocket (2) has a groove (4), and the groove (4) extends along the inner arc surface of the pocket (2) and forms a ring-shaped structure; the groove ( 4) has a trapezoidal cross-section, which gradually increases from the center of the pocket hole (2) to the outside of the cage body (1); the groove (4) is provided with a through hole that runs through the cage body (1) (5), the through holes (5) are evenly spaced along the annular surface of the groove (4).