CN205260615U - Four -point contacting ball bearing - Google Patents

Abstract

The utility model discloses a four -point contacting ball bearing, including bearing inner race, bearing inner race, bearing retainer, bearing rolling element, there is bearing retainer between bearing inner race and the bearing inner race, bearing retainer is last to have the bearing rolling element, and the bearing inner race internal surface has the inner circle bead, and there is the inner circle recess inner circle bead both sides, have the bearing rand on the inner circle bead. Beneficial effect lies in: reduction that the axial space that takies can show, the outer semi -ring of bearing inner race can not come off and result in the bearing failure, and permissible spin of packing more quantity in the bearing into can give the bearing higher load carrying capacity like this, permits the rotational speed also very high to it is very steady to operate, can bear very big radial load and axial load under higher rotational speed.

Description

A kind of four-point contact ball

Technical field

The utility model belongs to technical field of bearings, is specifically related to a kind of four-point contact ball.

Background technology

Four-point contact ball is a kind of divergence type bearing, also can be described as a set of bearing and can bear bi-directional axialThe angular contact ball bearing of load. The cross section that its inside and outside circle raceway is peach type, when no-load or purely radially carryLotus does the used time, and steel ball is rendered as at 4 with lasso and contacts. in the time only having pure Axial Loads, and steel ball and lassoJust become 2 contacts, can bear two-way axial load. Four-point contact ball can also bear moment and carryLotus, has had the function of single-row angular contact ball bearing and double-row angular contact bal bearing concurrently. Four-point contact ball onlyThere is guarantee while forming 2 contacts to work normally. So be generally applicable to those pure axial load or axlesTo the occasion that is 2 contacts under the large resultant load of load, four-point contact ball limit speed is high, also suitableClose the occasion running up in those. But the outer semi-ring of the inner ring of four-point contact ball is easy to come off, and leadsCause bearing failure.

Utility model content

The purpose of this utility model is just to provide in order to address the above problem a kind of four-point contact ball.

The utility model is achieved through the following technical solutions above-mentioned purpose:

A kind of four-point contact ball, comprises that bearing outer ring, bearing inner race, retainer, bearing rollKinetoplast, has retainer between bearing outer ring and bearing inner race, has bearing roller on retainer,Bearing inner race inner surface has inner ring fin, and there is inner ring groove inner ring fin both sides, on inner ring fin, have bearingCollar.

As preferred version of the present utility model, bearing outer ring internal layer and bearing inner race skin have the bearing of holding to rollThe groove of kinetoplast.

As preferred version of the present utility model, bearing inner race formed by semi-ring in the outer semi-ring of inner ring and inner ring andConnect by bearing collar.

As preferred version of the present utility model, the contact-making surface of bearing roller and bearing inner race and bearing outer ringThere is wearing layer.

As preferred version of the present utility model, bearing collar is recessed by semi-ring in the outer semi-ring of inner ring and inner ringGroove is by two semi-ring clamping composition bearing inner races.

The beneficial effects of the utility model are: the axial space taking can reduce significantly, bearing inner raceOuter semi-ring can not come off and cause bearing failure, can allow to pack into the spin of a greater number in bearing, like thisCan give the load ability to bear that bearing is higher, allow rotating speed also very high, and running be very steady, energyUnder higher rotating speed, bear very large radial load and axial load.

Brief description of the drawings

Fig. 1 is the cross section structure schematic diagram of a kind of four-point contact ball described in the utility model;

Fig. 2 is the shape and structure schematic diagram of the collar of a kind of four-point contact ball described in the utility model.

1, bearing outer ring; 2, retainer; 3, bearing inner race; 4, the outer semi-ring of inner ring; 5, in inner ringSemi-ring; 6, bearing collar; 7, inner ring fin; 8, inner ring groove; 9, bearing roller.

Detailed description of the invention

For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is carried out more comprehensivelyDescription. In accompanying drawing, provide preferred embodiment of the present utility model. But the utility model can be withMany different forms realize, and are not limited to embodiment described herein. On the contrary, provide these realExecuting routine object is to make to the understanding of disclosure of the present utility model more thoroughly comprehensively.

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As Figure 1-Figure 2, a kind of four-point contact ball, comprises bearing outer ring 1, bearing inner race 3, axleHold retainer 2, bearing roller 9, between bearing outer ring 1 and bearing inner race 3, have retainer 2, useIn constraint bearing roller 9, on retainer 2, there is bearing roller 9, for forming with bearing encloseRolling pair, bearing inner race 3 inner surfaces have inner ring fin 7, for being connected with bearing collar 6, inner ring fin 7There is inner ring groove 8 both sides, for placing bearing collar 6, have bearing collar 6 on inner ring fin 7, for inciting somebody to actionThe outer semi-ring 4 of inner ring connects together with semi-ring 5 in inner ring.

As preferred version of the present utility model, bearing outer ring 1 internal layer and bearing inner race 3 skins have the axle of holdingHold the groove of rolling element 9, bearing inner race 3 is made up of semi-ring 5 in the outer semi-ring 4 of inner ring and inner ring and passes through axleHold collar 6 and connect, bearing roller 9 has wearing layer with the contact-making surface of bearing inner race 3 and bearing outer ring 1,Bearing collar 6 passes through the inner ring groove 8 of semi-ring 5 in the outer semi-ring 4 of inner ring and inner ring by two semi-ring clamping groupsBecome bearing inner race 3.

More than show and described general principle of the present utility model, principal character and advantage. The technology people of the industryMember should understand, and the utility model is not restricted to the described embodiments, and in above-described embodiment and description, describesPrinciple of the present utility model is just described, do not departing under the prerequisite of the utility model spirit and scope, thisUtility model also has various changes and modifications, and it is new that these changes and improvements all fall into this claimed practicalityWithin the scope of type. The claimed scope of the utility model is defined by appending claims and effect thing thereof.

Claims (5)

1. a four-point contact ball, is characterized in that: comprise bearing outer ring, bearing inner race, bearing guarantorHold frame, bearing roller, between bearing outer ring and bearing inner race, have retainer, on retainer, haveBearing roller, bearing inner race inner surface has inner ring fin, and there is inner ring groove inner ring fin both sides, and inner ring is protrudingOn rib, there is bearing collar.

2. a kind of four-point contact ball according to claim 1, is characterized in that: in bearing outer ringLayer and bearing inner race skin have the groove that holds bearing roller.

3. a kind of four-point contact ball according to claim 1, is characterized in that: bearing inner race byThe outer semi-ring of inner ring forms and is connected by bearing collar with semi-ring in inner ring.

4. a kind of four-point contact ball according to claim 1, is characterized in that: bearing rollerThere is wearing layer with the contact-making surface of bearing inner race and bearing outer ring.

5. a kind of four-point contact ball according to claim 1, is characterized in that: bearing collar is logicalCross the groove of semi-ring in the outer semi-ring of inner ring and inner ring by two semi-ring clamping composition bearing inner races.