JPH04262121A - Rolling bearing - Google Patents
Rolling bearingInfo
- Publication number
- JPH04262121A JPH04262121A JP2313391A JP2313391A JPH04262121A JP H04262121 A JPH04262121 A JP H04262121A JP 2313391 A JP2313391 A JP 2313391A JP 2313391 A JP2313391 A JP 2313391A JP H04262121 A JPH04262121 A JP H04262121A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- rolling bearing
- raceway
- bearing
- raceway ring
- 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 title claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、たとえば水中で用い
るのに適した転がり軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling bearing suitable for use, for example, underwater.
【０００２】0002
【従来の技術と発明の課題】たとえば、軌道輪および転
動体が窒化ケイ素で形成されたセラミック軸受は、鋼製
軸受に比較して優れた耐食性を有しているので、水中で
の使用が考えられている。[Prior Art and Problems of the Invention] For example, ceramic bearings whose bearing rings and rolling elements are made of silicon nitride have superior corrosion resistance compared to steel bearings, so they are not suitable for use underwater. It is being
【０００３】しかしながら、窒化ケイ素は、自己潤滑性
を持たないために、このような軸受を水中において特に
高温、高荷重状態で使用すると、摩耗を生じ、破損する
ことがある。However, since silicon nitride does not have self-lubricating properties, when such bearings are used in water, especially at high temperatures and under high loads, they may wear out and break.
【０００４】この発明の目的は、上記問題を解決した転
がり軸受を提供することにある。[0004] An object of the present invention is to provide a rolling bearing that solves the above problems.
【０００５】[0005]
【課題を解決するための手段】この発明による転がり軸
受は、軌道輪および転動体がそれぞれセラミックスで形
成され、軌道輪の軌道面および転動体の転動面がそれぞ
れ酸化ケイ素皮膜で覆われているものである。[Means for Solving the Problems] In the rolling bearing according to the present invention, the raceway ring and the rolling elements are each made of ceramic, and the raceway surface of the raceway ring and the rolling surface of the rolling element are each covered with a silicon oxide film. It is something.
【０００６】上記において、酸化ケイ素皮膜の厚さは、
５〜１０μｍ程度としておくのがよい。また、酸化ケイ
素皮膜は、軌道輪および転動体の表面全体のうち少なく
とも軌道輪の軌道面および転動体の転動面だけに形成し
ておけばよい。[0006] In the above, the thickness of the silicon oxide film is
The thickness is preferably about 5 to 10 μm. Moreover, the silicon oxide film may be formed only on at least the raceway surface of the raceway ring and the rolling surface of the rolling element among the entire surfaces of the raceway ring and the rolling elements.
【０００７】上記において、軌道輪および転動体は窒化
ケイ素を主体とするセラミックスで形成されているのが
よい。[0007] In the above, it is preferable that the raceway ring and the rolling elements are made of ceramics mainly composed of silicon nitride.
【０００８】この場合、酸化ケイ素皮膜は、軌道輪およ
び転動体を大気中において高温で所定時間、たとえば９
００℃程度で１時間保持することにより形成される。[0008] In this case, the silicon oxide film is applied to the raceway ring and the rolling elements by exposing the raceway ring and the rolling elements to the atmosphere at a high temperature for a predetermined period of time, for example 9
It is formed by holding the temperature at about 00°C for 1 hour.
【０００９】この発明の転がり軸受は、水中で使用する
のに適しているが、これに限られるものではない。The rolling bearing of the present invention is suitable for use underwater, but is not limited thereto.
【００１０】0010
【実施例】以下、この発明の実施例を示す。[Examples] Examples of the present invention will be shown below.
【００１１】窒化ケイ素製内外両輪および玉からなる転
がり軸受を複数個用意し、その内外両輪の軌道面および
玉の表面に、厚さ１０μｍのＳｉＯ２ 皮膜を形成した
。
そして、荷重１４７０Ｎで寿命試験を行った。その結果
、上記軸受のＢ１０寿命は５１０時間であった。A plurality of rolling bearings consisting of both inner and outer rings and balls made of silicon nitride were prepared, and a 10 μm thick SiO 2 film was formed on the raceway surfaces of the inner and outer rings and on the surfaces of the balls. Then, a life test was conducted under a load of 1470N. As a result, the B10 life of the above bearing was 510 hours.
【００１２】比較のために、上記と同一の条件で、内外
両輪の軌道面および玉の表面にＳｉＯ２ 皮膜を持たな
い窒化ケイ素製内外両輪および玉からなる転がり軸受の
Ｂ１０寿命を調べたところ、３９１．１時間であった。For comparison, the B10 life of a rolling bearing consisting of both inner and outer rings and balls made of silicon nitride without SiO2 film on the raceway surfaces and ball surfaces of both inner and outer rings was investigated under the same conditions as above. .1 hour.
【００１３】[0013]
【発明の効果】この発明の転がり軸受によれば、酸化ケ
イ素が、高温、高荷重状態での優れた自己潤滑性および
耐食性を有しているので、たとえば水中において高温、
高荷重状態で使用した場合にも、摩耗が生じることはな
い。したがって、軌道輪の破損が防止されて寿命がのび
る。According to the rolling bearing of the present invention, silicon oxide has excellent self-lubricating properties and corrosion resistance under high temperature and high load conditions.
No wear occurs even when used under high loads. Therefore, the bearing ring is prevented from being damaged and its life is extended.
Claims (2)
ックスで形成され、軌道輪の軌道面および転動体の転動
面がそれぞれ酸化ケイ素皮膜で覆われている転がり軸受
。1. A rolling bearing in which the raceway ring and the rolling elements are each made of ceramic, and the raceway surface of the raceway ring and the rolling surface of the rolling element are each covered with a silicon oxide film.
体とするセラミックスで形成されている請求項１記載の
転がり軸受。2. The rolling bearing according to claim 1, wherein the raceway ring and the rolling elements are made of ceramics mainly containing silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3023133A JP2949526B2 (en) | 1991-02-18 | 1991-02-18 | Rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3023133A JP2949526B2 (en) | 1991-02-18 | 1991-02-18 | Rolling bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04262121A true JPH04262121A (en) | 1992-09-17 |
| JP2949526B2 JP2949526B2 (en) | 1999-09-13 |
Family
ID=12102037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3023133A Expired - Fee Related JP2949526B2 (en) | 1991-02-18 | 1991-02-18 | Rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949526B2 (en) |
-
1991
- 1991-02-18 JP JP3023133A patent/JP2949526B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2949526B2 (en) | 1999-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990518 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070709 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080709 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |