CN201162774Y

CN201162774Y - Rolling bearing

Info

Publication number: CN201162774Y
Application number: CNU2008200039548U
Authority: CN
Inventors: 汪文学
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-05
Filing date: 2008-02-05
Publication date: 2008-12-10
Anticipated expiration: 2018-02-05

Abstract

The utility model discloses a rolling bearing for solve current rolling bearing and appear the problem that lubricating oil revealed easily under the high temperature condition, it includes inner circle, outer lane, holder and rolling element, this inner circle surface is equipped with the round recess with outer lane internal surface radial relative, forms the rolling groove, the holder is fixed in the rolling groove, the rolling element is placed in the holder, between inner circle and the outer lane, the holder outer both sides are equipped with at least one deck sealing washer respectively.

Description

Rolling bearing

Technical field

The utility model relates to a kind of rolling bearing, relates in particular to a kind of rolling bearing that uses under hot environment.

Background technique

Bearing is the part of the most frequently used back shaft that arrives of mechanical field, and the rotation that it can leading axle also can be born the part that axle is gone up idle running.The bearing of generally saying is meant rolling bearing, it is little that rolling bearing has surface friction drag, power consumpiton is little, the mechanical efficiency height, advantages such as easy starting, general rolling bearing structure is made up of inner ring, outer ring, rolling element and retainer, and rolling element is evenly distributed on by means of retainer between inner ring and the outer ring, packing lubrication oil in the space that inner ring, outer ring and retainer form is to keep the less friction rotation of rolling element; Existing rolling bearing structure uses under general temperature conditions, and the lubricant oil in the bearing structure can guarantee the normal operation of rolling element long period; Yet this structure is actual the use under hot environment, the oil seepage phenomenon often occurs, influences the working life of rolling bearing.

The model utility content

It is a kind of at the effective rolling bearing of hot environment lower seal that the utility model provides.

For solving the problems of the technologies described above, the utility model adopts following technological scheme:

The rolling bearing that the utility model provides, comprise inner ring, outer ring, retainer and rolling element, the radially relative circle groove that is provided with of this inner ring outer surface with inner surface, form rolling groove, described retainer is fixed in the rolling groove, described rolling element is placed in the retainer, between described inner ring and the outer ring, the outer both sides of retainer are respectively equipped with one deck seal ring at least.

Further, preferably, the both sides of described retainer are respectively arranged with two layers of seal ring.

Preferably, a side of described retainer is provided with two layers of seal ring, and opposite side is provided with three-layer sealed circle.

Wherein, a side circle of described seal ring is fixed on the described outer ring, and the opposite side circle of seal ring does not contact with inner ring.

Between described inner ring and the outer ring, seal ring is outside equipped with dust cover.

The rolling bearing that the utility model provides, be respectively equipped with one deck seal ring at least by both sides between inner ring and outer ring, outside the retainer, in order to prevent the leakage of lubricant oil in the retainer, solved the problem of existing rolling bearing oil leak under high ambient conditions.

Description of drawings

Fig. 1 is the embodiment's of the utility model rolling bearing a schematic representation.

Embodiment

In order to make those skilled in the art person understand the utility model scheme better, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with drawings and Examples.

As shown in Figure 1, the embodiment of the utility model support rolling bearing, comprise inner ring 10, outer ring 20, retainer 30 and rolling element 40, the relative circle groove 11,21 that is provided with of these inner ring 10 outer surfaces with outer ring 20 inner surface radial directions, form rolling groove, retainer 30 is fixed in the rolling groove, rolling element 40, be placed in the retainer 30 as steel ball, between described inner ring 10 and the outer ring 20, retainer 30 outer both sides are respectively equipped with one deck seal ring 60 at least, one side circle of sealing circle 60 is fixed on the outer ring 20, and the opposite side circle of seal ring 60 does not contact with inner ring 10; Between inner ring 10 and the outer ring 20, the outer dust covers 70 that also are provided with of seal ring 60.

Wherein, the both sides of described retainer 30 can be respectively arranged with two layers of seal ring 60, also can be provided with two layers of seal ring 60 in a side of retainer 30, opposite side is provided with three-layer sealed circle 60, perhaps can be respectively arranged with three-layer sealed circle 60 in the both sides of retainer 30; Optimally, be provided with two layers of seal ring 60 with a side of retainer 30, opposite side is provided with three-layer sealed circle 60 best results, as shown in Figure 1.

The rolling bearing that the utility model provides, be respectively equipped with one deck seal ring 60 at least by both sides between inner ring 10 and outer ring 20, outside the retainer 30, in order to prevent the leakage of lubricant oil in the retainer 30, solved the problem of existing rolling bearing oil leak under high temperature condition.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1, a kind of rolling bearing, comprise inner ring, outer ring, retainer and rolling element, the radially relative circle groove that is provided with of this inner ring outer surface with inner surface, form rolling groove, described retainer is fixed in the rolling groove, described rolling element is placed in the retainer, it is characterized in that, between described inner ring and the outer ring, the outer both sides of retainer are respectively equipped with one deck seal ring at least.

2, rolling bearing according to claim 1 is characterized in that, the both sides of described retainer are respectively arranged with two layers of seal ring.

3, rolling bearing according to claim 1 is characterized in that, a side of described retainer is provided with two layers of seal ring, and opposite side is provided with three-layer sealed circle.

According to the described rolling bearing of arbitrary claim in the claim 1 to 3, it is characterized in that 4, a side circle of described seal ring is fixed on the described outer ring, the opposite side circle of seal ring does not contact with inner ring.

5, rolling bearing according to claim 1 is characterized in that, between described inner ring and the outer ring, seal ring is outside equipped with dust cover.