JP2000297819A5 - Ball bearing - Google Patents

Ball bearing Download PDF

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Publication number
JP2000297819A5
JP2000297819A5 JP1999106935A JP10693599A JP2000297819A5 JP 2000297819 A5 JP2000297819 A5 JP 2000297819A5 JP 1999106935 A JP1999106935 A JP 1999106935A JP 10693599 A JP10693599 A JP 10693599A JP 2000297819 A5 JP2000297819 A5 JP 2000297819A5
Authority
JP
Japan
Prior art keywords
ball bearing
ball
bearing
coating film
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.)
Withdrawn
Application number
JP1999106935A
Other languages
Japanese (ja)
Other versions
JP2000297819A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP11106935A priority Critical patent/JP2000297819A/en
Priority claimed from JP11106935A external-priority patent/JP2000297819A/en
Priority to US09/549,164 priority patent/US6357923B1/en
Priority to DE10066340A priority patent/DE10066340B4/en
Priority to DE10018688A priority patent/DE10018688B4/en
Publication of JP2000297819A publication Critical patent/JP2000297819A/en
Publication of JP2000297819A5 publication Critical patent/JP2000297819A5/en
Withdrawn legal-status Critical Current

Links

Description

【特許請求の範囲】
【請求項１】
軌道輪と玉を備えた玉軸受において、前記玉は、軌道輪と略同じ線膨張係数を持つ金属材料からなる金属ボールの表面にセラミックス材からなる被膜が形成されたものであることを特徴とする玉軸受。
【請求項２】
軌道輪と玉を備えた玉軸受において、前記玉は、軌道輪と略同じ線膨張係数を持つ金属材料からなる金属ボールの表面に硬質被膜が形成されたものであることを特徴とする玉軸受。
【請求項３】
前記硬質被膜の材質が、ＴｉＣ，ＡｌＮ，ＴｉＡｌＮ，ＺｒＮ，ＨｆＮ，ＣｒＮ，ＴｉＣＮ，ＷＣ，ダイヤモンド，およびＡｌ 2 Ｏ 3 のいずれかである請求項２記載の玉軸受。
【請求項４】
前記被膜は、ＰＶＤ法またはＣＶＤ法により形成されたものである請求項１〜３のいずれか１項に記載の玉軸受。
【請求項５】
前記被膜の厚さが０．２〜２．５μｍである請求項１〜４のいずれか１項に記載の玉軸受。
【請求項６】
前記被膜は、ＰＶＤ法またはＣＶＤ法により形成された後にラップ加工が施されて、厚さが０．２〜２．５μｍとされたものである請求項５記載の玉軸受。 [Claims]
[Claim 1]
In the ball bearing having a bearing ring and ball, the ball is characterized in der Rukoto those coating of ceramic material on the surface of the metal balls made of a metallic material substantially having the same linear expansion coefficient as the bearing ring is formed ball bearings shall be the.
2.
A ball bearing including a raceway ring and a ball, wherein the ball is a ball bearing in which a hard coating is formed on the surface of a metal ball made of a metal material having substantially the same coefficient of linear expansion as that of the raceway ring. ..
3.
The ball bearing according to claim 2, wherein the material of the hard coating is any one of TiC, AlN, TiAlN, ZrN, HfN, CrN, TiCN, WC, diamond, and Al 2 O 3.
4.
The ball bearing according to any one of claims 1 to 3, wherein the coating film is formed by a PVD method or a CVD method.
5.
The ball bearing according to any one of claims 1 to 4, wherein the thickness of the coating film is 0.2 to 2.5 μm.
6.
The ball bearing according to claim 5, wherein the coating film is formed by a PVD method or a CVD method and then lapped to have a thickness of 0.2 to 2.5 μm.

【００４３】
【発明の効果】
以上説明したように、本発明によれば、長寿命で音響特性の良好な低コストの玉軸受を提供できる。 [0043]
【Effect of the invention】
As described above , according to the present invention, it is possible to provide a low-cost ball bearing having a long life and good acoustic characteristics.

JP11106935A 1999-02-19 1999-04-14 Bearing using ceramics coating ball Withdrawn JP2000297819A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11106935A JP2000297819A (en) 1999-04-14 1999-04-14 Bearing using ceramics coating ball
US09/549,164 US6357923B1 (en) 1999-02-19 2000-04-13 Rolling bearing and bearing device
DE10066340A DE10066340B4 (en) 1999-04-14 2000-04-14 Bearing for hard disc drive spindle motor, includes metallic balls coated with ceramic material such that linear expansion coefficient of balls is approximately same as bearing washer
DE10018688A DE10018688B4 (en) 1999-04-14 2000-04-14 Bearing device, in particular for a hard disk drive with a spindle motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11106935A JP2000297819A (en) 1999-04-14 1999-04-14 Bearing using ceramics coating ball

Publications (2)

Publication Number Publication Date
JP2000297819A JP2000297819A (en) 2000-10-24
JP2000297819A5 true JP2000297819A5 (en) 2006-04-06

Family

ID=14446262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11106935A Withdrawn JP2000297819A (en) 1999-02-19 1999-04-14 Bearing using ceramics coating ball

Country Status (2)

Country Link
JP (1) JP2000297819A (en)
DE (1) DE10018688B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006050122A1 (en) * 2006-10-25 2008-04-30 Schaeffler Kg Needle bearing has bearing ring, where bearing ring has hardened austenitic steel with total carbon and nitrogen content and needles roll on bearing surface of bearing ring
DE202013002328U1 (en) 2013-03-09 2013-03-26 Wieland-Werke Ag storage system
DE102013004151B4 (en) 2013-03-09 2015-11-26 Wieland-Werke Ag storage system
JP6400300B2 (en) 2013-03-09 2018-10-03 ヴィーラント ウェルケ アクチーエン ゲゼルシャフトＷｉｅｌａｎｄ−Ｗｅｒｋｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ Bearing system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04360077A (en) * 1991-06-07 1992-12-14 Hitachi Ltd Rotary actuator for magnetic disk device
JPH07127644A (en) * 1993-10-29 1995-05-16 Ntn Corp Corrosion resistant bearing
JPH07282551A (en) * 1994-04-05 1995-10-27 Toshiba Corp Rotary type actuator
US5593234A (en) * 1995-05-16 1997-01-14 Ntn Corporation Bearing assembly with polycrystalline superlattice coating
US6290398B1 (en) * 1997-04-03 2001-09-18 Koyo Seiko Co., Ltd. Rolling bearing
JPH1145145A (en) * 1997-07-25 1999-02-16 Koji Toda Ultrasonic instruction controller
JP3867354B2 (en) * 1997-07-29 2007-01-10 株式会社デンソー Touch switch device
NL1007046C2 (en) * 1997-09-16 1999-03-17 Skf Ind Trading & Dev Coated rolling bearing.
JPH11106935A (en) * 1997-09-30 1999-04-20 Fuji Photo Film Co Ltd Production of metal oxide thin film and metal oxide thin film

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