JPH0352416U - - Google Patents
Info
- Publication number
- JPH0352416U JPH0352416U JP11377789U JP11377789U JPH0352416U JP H0352416 U JPH0352416 U JP H0352416U JP 11377789 U JP11377789 U JP 11377789U JP 11377789 U JP11377789 U JP 11377789U JP H0352416 U JPH0352416 U JP H0352416U
- Authority
- JP
- Japan
- Prior art keywords
- rms
- surface roughness
- parameter
- less
- depressions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Description
第１図はこの考案に係るトランスミツシヨン用
ころ軸受の使用例を示す縦断面図、第２図は同上
要部の拡大断面図、第３図と第４図は転動体表面
の仕上面状況を示す概略図、第５図は試験装置の
概略図面、第６図は転動体寿命試験の結果を示す
グラフ、第７図はＳＫ値と寿命の関係を示すグラ
フ、第８図はＲＭＳ（Ｌ／Ｃ）値と寿命の関係を
示すグラフ、第９図は油膜パラメータと油膜形状
率を示す関係図、第１０図と第１１図は油膜形成
率を示すグラフ、第１２図と第１３図は従来の円
すいころ軸受とこの考案の円すいころ軸受の回転
トルクの測定結果を示すグラフ、第１４図と第１
５図は同じく耐焼付性試験の結果を示すグラフで
ある。
２…インプツトシヤフト、３…ドライブピニオ
ン、４…アウトプツトシヤフト、８…円筒ころ軸
受、９，１０…パイロツトニードル軸受。
Fig. 1 is a longitudinal sectional view showing an example of the use of the transmission roller bearing according to this invention, Fig. 2 is an enlarged sectional view of the main part of the same, and Figs. 3 and 4 are the finished surfaces of the rolling elements. Fig. 5 is a schematic drawing of the test equipment, Fig. 6 is a graph showing the results of the rolling element life test, Fig. 7 is a graph showing the relationship between SK value and life, and Fig. 8 is the RMS (L /C) Graph showing the relationship between value and life, Figure 9 is a relationship diagram showing oil film parameters and oil film shape rate, Figures 10 and 11 are graphs showing oil film formation rate, Figures 12 and 13 are graphs showing oil film formation rate. Graphs showing the measurement results of the rotational torque of the conventional tapered roller bearing and the tapered roller bearing of this invention, Figures 14 and 1
FIG. 5 is a graph similarly showing the results of the seizure resistance test. 2...Input shaft, 3...Drive pinion, 4...Output shaft, 8...Cylindrical roller bearing, 9, 10...Pilot needle bearing.
Claims (1)
転動体表面もしくは内外輪の転動面、滑り面の少
なくとも一つに、微小な独立したくぼみを無数に
ランダムに設け、このくぼみを設けた面の面粗さ
を、軸方向と円周方向のそれぞれを求めてパラメ
ータＲＭＳで表示したとき、軸方向面粗さＲＭＳ
(L)と円周方向面粗さＲＭＳ(C)との比ＲＭＳ(L)
／ＲＭＳ(C)が１．０以下となり、合わせて面粗
さのパラメータＳＫ値が軸方向及び円周方向の何
れも−１．６以下となるようにした車両のトラン
スミツシヨン用ころ軸受。 Countless small independent depressions are randomly provided on the surface of the rolling elements of bearings used in automobile transmissions, or on at least one of the rolling surfaces and sliding surfaces of inner and outer rings, and the surface roughness of the surface with these depressions is improved. When the surface roughness is determined in the axial direction and the circumferential direction and expressed by the parameter RMS, the axial surface roughness RMS
(L) and the ratio of circumferential surface roughness RMS(C) RMS(L)
/RMS(C) is 1.0 or less, and the surface roughness parameter SK value is -1.6 or less in both the axial direction and the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989113777U JPH0620900Y2 (en) | 1989-09-28 | 1989-09-28 | Roller bearings for vehicle transmissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989113777U JPH0620900Y2 (en) | 1989-09-28 | 1989-09-28 | Roller bearings for vehicle transmissions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0352416U true JPH0352416U (en) | 1991-05-21 |
| JPH0620900Y2 JPH0620900Y2 (en) | 1994-06-01 |
Family
ID=31662180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989113777U Expired - Lifetime JPH0620900Y2 (en) | 1989-09-28 | 1989-09-28 | Roller bearings for vehicle transmissions |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620900Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023022044A1 (en) * | 2021-08-19 | 2023-02-23 | Ntn株式会社 | Gearbox shaft and bearing device using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155460A (en) * | 1984-08-27 | 1986-03-19 | Toyota Motor Corp | Rolling friction speed change gear |
| JPS61124581A (en) * | 1984-11-20 | 1986-06-12 | Toyota Motor Corp | Scuffing-resistant cam/rocker arm pair |
| JPS61182454U (en) * | 1985-05-04 | 1986-11-14 |
-
1989
- 1989-09-28 JP JP1989113777U patent/JPH0620900Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155460A (en) * | 1984-08-27 | 1986-03-19 | Toyota Motor Corp | Rolling friction speed change gear |
| JPS61124581A (en) * | 1984-11-20 | 1986-06-12 | Toyota Motor Corp | Scuffing-resistant cam/rocker arm pair |
| JPS61182454U (en) * | 1985-05-04 | 1986-11-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023022044A1 (en) * | 2021-08-19 | 2023-02-23 | Ntn株式会社 | Gearbox shaft and bearing device using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620900Y2 (en) | 1994-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |