CN2172366Y

CN2172366Y - Automotive steering coupling main pin bearing and damper bearing

Info

Publication number: CN2172366Y
Application number: CN 93226169
Authority: CN
Inventors: 朱冠群; 钱永虎
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-11
Filing date: 1993-08-11
Publication date: 1994-07-20
Anticipated expiration: 2003-08-11

Abstract

The utility model discloses an automobile steering coupling main pin bearing and damper bearing, which relates to the sealing of the ball bearing and a bearing ring. The automotive steering coupling main pin bearing and damper bearing is composed of a shaft ring, a seat ring, a steel ball, a cover casing, a sealing ring in the shape of O, and a sealing liner. The sealing ring in the shape of O is arranged on the external edge of the shaft ring and leans against the convex shoulder of the external edge; the cover casing is sheathed on the external edge of the shaft ring and the seat ring and is buckled on the sealing ring in the shape of O; the sealing liner is sheathed on the internal edge of the shaft ring, and the curvature radii of the roller path of the shaft ring and the seat ring are smaller than the curvature radius of the steel ball. The utility model which is as a sealing bearing has the characteristic of long service life.

Description

Automotive steering coupling main pin bearing and damper bearing

The utility model relates to ball bearing sealing and bearing ring structure, relates in particular to the sealing and the bearing ring of king bdt bearing and shock absorber bearing.

King bdt bearing and shock absorber bearing are respectively applied for lorry, passenger vehicle, minicar and car, are installed on the knuckle and shock absorber of front-wheel.Bearing mainly bears axial force when using, when vehicle launch, stop instantaneously, also bear radial component under the situations such as climbing and descending, and power withstands shocks in vehicle driving.The general rotating speed of bearing is zero, and rolling element for a long time contacts on immovable point with lasso, and only work is swung to the left or to the right when turning to, and finishes to be returned to again on the former point of contact after turning to.The Bearing Installation position belongs to opening type, and rainwater and silt easily invade this position.Existing this class bearing structure as shown in Figure 1.It is made up of blowout patche, seat ring, steel ball and case, is the non-tight structure, and inside is not grease-added, lasso raceway ditch radius of curvature is greater than the steel ball radius of curvature, is the single-point contact each other.Lasso and steel ball rub on the fixing point of being everlasting during use, along with the growth of service time, occur the pit identical with steel ball number on the lasso raceway, when pit arrives to a certain degree deeply, the driver feels that when turning to steering wheel is heavy, and understeer is lived, and bearing failure is described.Because bearing is the opening type structure, silt etc. enter bearing inside easily, thereby have quickened the wearing and tearing of bearing.

The purpose of this utility model is to provide a kind of new king bdt bearing and shock absorber bearing, and this bearing is a sealed type, has the characteristics of long service life.

The utility model is achieved in that on king bdt bearing and shock absorber bearing and has designed O RunddichtringO and seal cartridge that making bearing is sealing configuration, changes blowout patche and seat ring raceway ditch radius of curvature, has prolonged the working life of bearing.

Fig. 1 is the sectional view of existing king bdt bearing and shock absorber bearing, and Fig. 2 is the sectional view of the utility model king bdt bearing and shock absorber bearing.

.1 case among the figure, 2 seat rings, 3 steel balls, 4 blowout patches, 5O RunddichtringO, 6 sealed nylon linings.

Provide embodiment of the present utility model below in conjunction with accompanying drawing.

A kind of king bdt bearing and shock absorber bearing, comprise blowout patche 4, seat ring 2, steel ball 3, case 1 and O RunddichtringO 5 and seal cartridge 6, blowout patche 4 outer rims have a convex shoulder, O RunddichtringO 5 is enclosed within blowout patche 4 outer rims and leans against on the convex shoulder, case 1 is enclosed within blowout patche and seat ring outer rim, and is buckled on the O RunddichtringO 5, makes the bearing outside be the sealing shape; Seal cartridge 6 is sleeved on blowout patche 4 inner edges, and the stub axle is contained on the seal cartridge, can play the scratch and the interior seal action that prevent between stub axle and the bearing ring, and seal cartridge is generally nylon and makes.The sealing configuration of having formed bearing like this by O RunddichtringO and sealed nylon lining, inner lubricating grease are difficult for flowing out, and outside silt also is difficult for entering bearing inside, has prolonged the working life of bearing.In addition, consider that king bdt bearing and shock absorber bearing mainly bear axial force, therefore another characteristics of the present utility model are that the contact of the single-point between lasso and the steel ball is changed into the two point contact, the raceway ditch radius of curvature that is bearing race and blowout patche is less than the steel ball radius of curvature, between bottom of trench and the steel ball slight clearance is arranged like this, in use, As time goes on wearing and tearing progressively increase between lasso and the steel ball, two point of contact surface of contact increase gradually, then steel ball contacts with bottom of trench, so just become the operation conditions of general bearing, prolonged the working life of bearing.

Claims

1, a kind of king bdt bearing and shock absorber bearing, comprise blowout patche, seat ring, steel ball, case, it is characterized in that this bearing also comprises O RunddichtringO and seal cartridge, the blowout patche outer rim has a convex shoulder, the O RunddichtringO is enclosed within the blowout patche outer rim and leans against on the convex shoulder, case is enclosed within blowout patche and seat ring outer rim, and is buckled on the O RunddichtringO, and seal cartridge is sleeved on the blowout patche inner edge.

2, king bdt bearing according to claim 1 and shock absorber bearing, the raceway ditch radius of curvature that it is characterized in that blowout patche and seat ring is less than the steel ball radius of curvature.