JPS6280018U

JPS6280018U -

Info

Publication number: JPS6280018U
Application number: JP17185085U
Authority: JP
Priority date: 1985-11-08
Filing date: 1985-11-08
Publication date: 1987-05-22
Also published as: JPH0139937Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例の縦断面図、第２図
、第３図は第１図の一部を示し、作用を示す縦断
面図、第４図、第５図は他の実施例の作用を示す
縦断面図、第６図はこの考案の更に他の実施例を
示す縦断面図、第７図、第８図は夫々別の実施例
を示す斜視図、第９図乃至第１２図は従来例を示
し、第９図は合成樹脂ケース入りスラストボール
ベアリングの縦断面図、第１０図は合成樹脂ケー
ス入りスラストボールベアリングの使用例を示す
縦断面図、第１１図は他の従来例を示す縦断面図
、第１２図は第１１図のＡ―Ａ断面展開図である
。１，２……軌道輪、４……転動体、５……端面
、６……円周溝、７……スラストボールベアリン
グ、８，９……軌道面、１０……円筒部、１１…
…端面、１２……上部ケース、１３……下部ケー
ス、１４……突条、１５……リツプ、１６……内
周部材、１７，２０……リツプ、２１……外周部
材、２１^１……内周部材、２２……リツプ、２３
……突条、２４……内円筒部、２５……緩衝材、
２６……溝、３２……ロツドエンドプレート、３
３……ボデイ、３４……アツパーマウント、３５
……ラバーマウント、３７……シヨツクアブソー
バロツド、３８……ナツト、３９……スプリング
シート、４０……弾性シート、４１……円筒形部
、４２……コイルばね、４３……シヨツクアブソ
ーバ本体、４４……ばね座、４５……円筒形部、
４６……凹部、４７……ボルトナツト、４９……
環状溝、５１……突条、Ｄ１，Ｄ２……外径、ｄ
１〜ｄ４……内径。 Fig. 1 is a longitudinal sectional view of an embodiment of this invention, Figs. 2 and 3 are longitudinal sectional views showing a part of Fig. 1 and show the operation, and Figs. 4 and 5 are other embodiments. FIG. 6 is a longitudinal sectional view showing still another embodiment of this invention, FIGS. 7 and 8 are perspective views showing other embodiments, and FIGS. 9 to 12. The figures show a conventional example, Fig. 9 is a longitudinal cross-sectional view of a thrust ball bearing encased in a synthetic resin case, Fig. 10 is a longitudinal cross-sectional view showing an example of use of a thrust ball bearing encased in a synthetic resin case, and Fig. 11 is another conventional example. A vertical sectional view showing an example, FIG. 12 is a developed cross-sectional view taken along the line AA in FIG. 11. 1, 2... Raceway ring, 4... Rolling element, 5... End face, 6... Circumferential groove, 7... Thrust ball bearing, 8, 9... Raceway surface, 10... Cylindrical portion, 11...
... End face, 12 ... Upper case, 13 ... Lower case, 14 ... Projection, 15 ... Lip, 16 ... Inner peripheral member, 17, 20 ... Lip, 21 ... Outer peripheral member, 21 ¹ ... Inner peripheral member, 22... Lip, 23
... Protrusion, 24 ... Inner cylindrical part, 25 ... Cushioning material,
26... Groove, 32... Rod end plate, 3
3...Body, 34...Upper mount, 35
... Rubber mount, 37 ... Shock absorber rod, 38 ... Nut, 39 ... Spring seat, 40 ... Elastic sheet, 41 ... Cylindrical part, 42 ... Coil spring, 43 ... Shock absorber body, 44... Spring seat, 45... Cylindrical part,
46... recess, 47... bolt nut, 49...
Annular groove, 51... Projection, D1, D2... Outer diameter, d
1 to d4...inner diameter.

Claims

[Scope of utility model registration request]

The bearing rings of the thrust ball bearing are each covered by a synthetic resin case from both sides of the mounting end of the bearing ring, and the cases form shaft sealing fitting parts on the inner and outer circumferential sides of the bearing, and the bottom of either one case or both cases. A circumferential groove with a square cross section is provided on the inside of the material.
It has an end surface in contact with the bottom surface of the groove, and a side surface that leaves a small gap with one side surface of the groove when assembled and also makes contact with another side surface of the groove, or has a small gap with both side surfaces of the groove when assembled. An annular cushioning material that is in contact with the end surface of the raceway ring and has a side surface that is in contact with the end surface of the bearing ring is fitted into the groove, and the minute gap between the side surface of the groove inside the bottom member of the case and the side surface of the cushioning material allows air to pass through during assembly. A thrust ball bearing unit characterized in that the clearance is large enough to disappear under static load conditions.