CN203395009U

CN203395009U - Double-row bearing with novel inner ring

Info

Publication number: CN203395009U
Application number: CN201320420761.3U
Authority: CN
Inventors: 谢丽
Original assignee: ZHEJIANG ZHENGDA BEARING Co Ltd
Current assignee: ZHEJIANG ZHENGDA BEARING Co Ltd
Priority date: 2013-07-12
Filing date: 2013-07-12
Publication date: 2014-01-15
Anticipated expiration: 2023-07-12

Abstract

The utility model discloses a double-row bearing with a novel inner ring, aiming at providing a double-row bearing with a novel inner ring, which is capable of improving the rigidity and bearing capacity of the bearing and prolonging the service life of the bearing, and convenient to assemble and disassemble. According to the technical scheme, the double-row bearing is mainly characterized by comprising an outer ring, a spacer ring, an inner ring, two rows of cone tapered rollers, and two retainers, wherein the inner ring is a whole, a square inner hole is formed in the inner ring, and edges of the inner hole are fillet edges. The double-row bearing is applicable to completing clearance set through the spacer ring when the bearing is assembled, without the adjustment of a user, and has the characteristics of being good in rigidity and large in bearing capacity, thus solving the defect that a clearance is not easy to control when the bearing is assembled; the inner hole of the inner ring is square, so that the contact area of an axle and the bearing can be increased, the contact pressure generated in working can be reduced, the service life of the bearing can be prolonged, and the edges of the inner hole are fillet edges, thus being more convenient for the bearing to assemble and disassemble.

Description

Double row bearing with novel inner ring

Technical field

The utility model relates to a kind of double row bearing, and more particularly, it relates to a kind of compound (radially with axially) load that is applicable to bearing, the double row bearing with novel inner ring that can axially locating at both direction.

Background technique

At present, in industries such as automobile, milling train, mine, metallurgy, plastics machineries, can require supporting design bearing, the double-row conical bearing that being mostly of use consists of two cover single-row tapered roller bearings, mainly bear compound (radially with axially) load, can axially locating at both direction; Yet, axial internal clearance in existing double-row conical bearing is wayward when installing, using, spacing between two cover single-row tapered roller bearings cannot effectively be located, therefore cause the rigidity of two cover single-row tapered roller bearings poor, reduced its bearing capacity, thereby reduced its working life.Axle and bearing joint easily produce wearing and tearing in addition, the main cause that produces wearing and tearing is super-strength contact, finally cause producing strong frictional force between axle and bearing, and then produce high temperature and destroy axle or the metal layer of bearing surface of contact, cause the circle of axle to beat larger, machine operation is steady not, affects mechanically actuated safety.

Model utility content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of and just bearing clearance adjustment is completed when bearing assemble, thereby improve bearing rigidity and bearing capacity, can also increase the area of contact of axle and bearing, the contact producing during minimizing work, extend bearing life, and the double row bearing with novel inner ring of easy installation and removal.

For achieving the above object, the utility model provides following technological scheme: a kind of double row bearing with novel inner ring, comprise outer ring, spacer ring, inner ring, two row tapered rollers and two retainers, the small end face that described outer ring is provided with two Ge Qieliangge outer rings is close, spacer ring is placed between Liang Ge outer ring, the described tapered roller of two row is arranged between inner ring and outer ring by two retainers respectively, two row tapered rollers are symmetrically placed in the both sides of spacer ring, between tapered roller central axis and the central axis of inner ring, there is angle, described inner ring is an integral body, inner ring is provided with square endoporus, the seamed edge of described endoporus is round edge.

Described outer ring with the Placement of described spacer ring for being threaded.

The middle part of described spacer ring is provided with oil hole, and described oil hole is through described spacer ring.

Described outer ring and described inner ring are controlled its radial internal clearance in 0.035～0.055mm, and axial internal clearance is in 0.148～0.233mm.

By adopting technique scheme, because inner ring is an integral body, just can when bearing assemble, by spacer ring, play setting be completed, do not need user to regulate, and possess good rigidly, feature that bearing capacity is large, the uppity shortcoming of play while therefore having solved installation bearing; And the endoporus of inner ring is square, increased the area of contact of axle and bearing, the contact having produced while having reduced work, extends bearing life, and the seamed edge of endoporus be round edge more convenient the installation and removal of bearing.

Accompanying drawing explanation

Fig. 1 is that the utility model is with the structural representation of the double row bearing of novel inner ring.

Fig. 2 is the axial schematic diagram of inner ring.

Figure Zhong1-outer ring, 2-inner ring, 3-retainer, 4-tapered roller, 5-spacer ring, 21-endoporus, 51-oil hole.

Embodiment

With reference to Fig. 1, Fig. 2, to the utility model, the double row bearing embodiment with novel inner ring is described further.

A kind of double row bearing with novel inner ring 2, comprise outer ring 1, spacer ring 5, inner ring 2, two row tapered rollers 4 and two retainers 3, the small end face that described outer ring 1 is provided with two Ge Qieliangge outer rings 1 is close, spacer ring 5 is placed between Liang Ge outer ring 1, the described tapered roller 4 of two row is arranged between inner ring 2 and outer ring 1 by two retainers 3 respectively, two row tapered rollers 4 are symmetrically placed in the both sides of spacer ring 5, between tapered roller 4 central axis and the central axis of inner ring 2, there is angle, described inner ring 2 is an integral body, inner ring 2 is provided with square endoporus 21, the seamed edge of described endoporus 21 is round edge.

Described outer ring 1 with the Placement of described spacer ring 5 for being threaded.

The middle part of described spacer ring 5 is provided with oil hole 51, and described oil hole 51 is through described spacer ring 5.

Its radial internal clearance is controlled in 0.035～0.055mm with described inner ring 2 in described outer ring 1, and axial internal clearance is in 0.148～0.233mm.

Be somebody's turn to do the beneficial effect with the double row bearing of novel inner ring: the small end face that described outer ring 1 is provided with two Ge Qieliangge outer rings 1 is close, spacer ring 5 is placed between Liang Ge outer ring 1, outer ring 1 with the Placement of spacer ring 5 for being threaded, this Placement has the Placement that differs from existing bearing, be threaded and be of value to the sealing of outer ring 1 and spacer ring 5, make the internal structure of bearing in stable environment, can not be subject to external influence, and be threaded bearing is become one, be of value to the mounting or dismounting of bearing, can not cause the phenomenons such as the bearing sequence of sanqu songs within a particular musical mode; The middle part of described spacer ring 5 is provided with oil hole 51, described oil hole 51 is through spacer ring 5, oil hole 51 is to use for lubricating oil filling in bearing, avoided the dismounting bearing could be to lubricating oil filling in its internal raceways, lubricant oil flows into the inside of inner assembly by oil hole 51, thereby make to reduce with the double row bearing friction of novel inner ring 2, temperature reduces, life.In order to guarantee that the tapered roller 4 of bearing inside is lubricated fully, can also be by 2～5 oil holes 51 being set on spacer ring 5 to realize.

The described tapered roller 4 of two row is arranged between inner ring 2 and outer ring 1 by two retainers 3 respectively, two row tapered rollers 4 are symmetrically placed in the both sides of spacer ring 5, between tapered roller 4 central axis and the central axis of inner ring 2, there is angle, because inner ring 2 is an integral body, just can when bearing assemble, by spacer ring 5, play setting be completed, control its radial internal clearance in 0.035～0.055mm, axial internal clearance is in 0.148～0.233mm, do not need user to regulate, and possesses good rigidly, the feature that bearing capacity is large, the uppity shortcoming of play while therefore having solved installation bearing, and the endoporus 21 of inner ring 2 is square, increased the area of contact of axle and bearing, the contact having produced while having reduced work, extends bearing life, and the seamed edge of endoporus 21 be round edge more convenient the installation and removal of bearing, inner ring 2 can adopt rigidity high wear resistance good material to make.

Claims

1. the double row bearing with novel inner ring, comprise outer ring, spacer ring, inner ring, two row tapered rollers and two retainers, it is characterized in that: the small end face that described outer ring is provided with two Ge Qieliangge outer rings is close, spacer ring is placed between Liang Ge outer ring, the described tapered roller of two row is arranged between inner ring and outer ring by two retainers respectively, two row tapered rollers are symmetrically placed in the both sides of spacer ring, between tapered roller central axis and the central axis of inner ring, there is angle, described inner ring is an integral body, inner ring is provided with square endoporus, and the seamed edge of described endoporus is round edge.

2. the double row bearing with novel inner ring according to claim 1, is characterized in that: described outer ring with the Placement of described spacer ring for being threaded.

3. the double row bearing with novel inner ring according to claim 1 and 2, is characterized in that: the middle part of described spacer ring is provided with oil hole, and described oil hole is through described spacer ring.

4. the double row bearing with novel inner ring according to claim 1 and 2, is characterized in that: described outer ring and described inner ring are controlled its radial internal clearance in 0.035～0.055mm, and axial internal clearance is in 0.148～0.233mm.