CN202418255U

CN202418255U - Seal ring for self-aligning roller bearing

Info

Publication number: CN202418255U
Application number: CN201220037717XU
Authority: CN
Inventors: 李卫民; 小林英一; 小谷泰造; 邵鹏; 青木智博
Original assignee: QINGHUANGDAO NPB BEARINGS CO Ltd
Current assignee: QINGHUANGDAO NPB BEARINGS CO Ltd
Priority date: 2012-01-21
Filing date: 2012-01-21
Publication date: 2012-09-05
Anticipated expiration: 2022-01-21

Abstract

A seal ring for a self-aligning roller bearing is composed of a metal outer ring, a retainer ring, rubber sealing lips, an extending retainer ring and an outer opening edge hoop. The retainer ring is arranged on one side of the edge of the metal outer ring in a connecting mode, the extending retainer ring is arranged on the edge position of the other side of the metal outer ring in a connecting mode, and the outer opening edge hoop is arranged at the outer edge position of the extending retainer ring in a connecting mode. A plurality of rubber sealing lips are adhered to the inner side of the metal outer ring. The seal ring is installed and fixed on a bearing outer ring and can form a self-aligning structure together with a bearing seal ring fixed on a bearing inner ring. The seal ring for the self-aligning roller bearing has the self-aligning and sealing effects on the self-aligning roller bearing, especially on a bearing having the outer ring producing relative rotating displacement relative to a central point of the self-aligning roller bearing, and the sealing effect of the seal ring is not influenced by the relative movement of the inner ring and the outer ring of the bearing.

Description

A kind of selfaligning roller bearing is used seal ring

Technical field

The utility model relates to a kind of selfaligning roller bearing and uses seal ring, belongs to the bearing seal fitting field.

Background technique

In mechanical industry, varied to the sealing means of bearing, have and use soft rubber material to do sealing; Also have and use hard metal material to do sealing, seal ring easy ageing distortion that pure soft rubber material is processed, working life is short; Be not suitable on the bearing that runs up, using; And traditional seal ring that hard metal material is processed can only play certain seal action on the fixed position of bearing, for the selfaligning roller bearing of international standard, because the bearing of the type in use; The inside and outside circle of bearing can produce relative offset phenomena; And this traditional bearing itself does not have sealing configuration, and the sealing of its inner ring and outer ring must be leaned on the sealed member that adds other in other annex outside bearing of user separately, just can arrive the purpose of the inside and outside circle of stuffing box bearing.So not only increase the workload of the design and the manufacturing of bearing accessory, but also increased cost of production, influenced productivity effect.Present existing self-aligning roller bearing does not also solve this technical problem of the integrated sealing of assembly.

RealUse novel content

The purpose of the utility model is in order to provide a kind of selfaligning roller bearing to use seal ring, and the sealing circle is fixed on the bearing outer ring, can constitute the self-aligning structure with the bearing seal ring that is fixed on the bearing inner race; For aligning roller, the bearing of the outer ring of relative swing offset is especially arranged for the central point of selfaligning bearing, have self-aligning and seal action, its sealing effect does not receive the influence that relatively moves of the inside and outside circle of bearing.Because the sealing circle is the spherical crown stairstepping; The rubber seal lip that its set inside is installed can be tangent with the sphere of spherical crown shape inner ring seal ring that with the bearing centre point is the center; When the inner ring of selfaligning roller bearing and outer ring during with the mode relative displacement of homocentric sphere crown; The sealing circle can not have influence on the synchronous aligning motion of the inside and outside circle of selfaligning roller bearing, also can be used with the inner ring seal ring of selfaligning roller bearing simultaneously, plays good sealing effect.

In order to achieve the above object, the utility model is realized through following technological means.

A kind of selfaligning roller bearing is used seal ring; It is made up of metal outer ring, baffle ring, rubber seal lip, extension back-up ring, collar extension limit hoop part; It is characterized in that: one side is connected with baffle ring at the edge of metal outer ring; Opposite side edge in the metal outer ring is connected with the extension back-up ring, is connected with collar extension limit hoop in the outer edge of extending back-up ring; Be bonded with some slat gum sealing lips in the inboard of metal outer ring.

The utility model mainly has following beneficial effect:

1, the sealing circle is fixed on the bearing outer ring, can constitute the self-aligning structure with the bearing seal ring that is fixed on the bearing inner race; For the outer ring of selfaligning roller bearing, the bearing of the outer ring of relative swing offset is especially arranged for the central point of selfaligning bearing, have self-aligning and seal action, its sealing effect does not receive the influence that relatively moves of the inside and outside circle of bearing.

2, because the sealing circle is the spherical crown stairstepping; The rubber seal lip that its set inside is installed can be tangent with the sphere of spherical crown shape inner ring seal ring that with the bearing centre point is the center; When the inner ring of selfaligning roller bearing and outer ring during with the mode relative displacement of homocentric sphere crown; The sealing circle can not have influence on the synchronous aligning motion of the inside and outside circle of spherical crown shape roller bearing, also can be used with the inner ring seal ring of selfaligning roller bearing simultaneously, plays good sealing effect.

Description of drawings

Accompanying drawing is the stereochemical structure truncation surface schematic representation of a kind of selfaligning roller bearing of the utility model with seal ring.

As shown in the figure, above-mentioned a kind of selfaligning roller bearing is represented by following Arabic numerals with the structure division of seal ring:

The metal outer ring, 2. baffle ring, 3. the rubber seal lip, 4. extend back-up ring, 5. collar extension limit hoop.

Below in conjunction with embodiment and Figure of description the utility model is done further to specify:

Embodiment

As shown in the figure, a kind of selfaligning roller bearing is used seal ring, and it is bound round 5 parts and constituted by metal outer ring 1, baffle ring 2, rubber seal lip 3, extension back-up ring 4, collar extension limit.

As shown in the figure, a side is connected with baffle ring 2 at the edge of metal outer ring 1, and the opposite side edge in metal outer ring 1 is connected with extends back-up ring 4, is connected with collar extension limit hoop 5 in the outer edge of extending back-up ring 4; Be bonded with some slat gum sealing lips 3 in the inboard of metal outer ring 1.

Claims

1. a selfaligning roller bearing is used seal ring; It is made up of metal outer ring (1), baffle ring (2), rubber seal lip (3), extension back-up ring (4), collar extension limit hoop (5) part; It is characterized in that: a side is connected with baffle ring (2) at the edge of metal outer ring (1); Opposite side edge in metal outer ring (1) is connected with extends back-up ring (4), is connected with collar extension limit hoop (5) in the outer edge of extending back-up ring (4); Be bonded with some slat gum sealing lips (3) in the inboard of metal outer ring (1).