JP2007100870A5 - - Google Patents
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- JP2007100870A5 JP2007100870A5 JP2005292717A JP2005292717A JP2007100870A5 JP 2007100870 A5 JP2007100870 A5 JP 2007100870A5 JP 2005292717 A JP2005292717 A JP 2005292717A JP 2005292717 A JP2005292717 A JP 2005292717A JP 2007100870 A5 JP2007100870 A5 JP 2007100870A5
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- inner member
- zinc coating
- rolling device
- less
- 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.)
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- 238000005096 rolling process Methods 0.000 claims description 28
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 239000011701 zinc Substances 0.000 claims description 18
- 229910052725 zinc Inorganic materials 0.000 claims description 18
- 238000005480 shot peening Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002459 sustained Effects 0.000 description 1
Description
さらに、本発明に係る請求項３の転動装置は、請求項１又は請求項２に記載の転動装置において、前記亜鉛被膜の厚さが０．１μｍ以上８μｍ以下であることを特徴とする。
さらに、本発明に係る請求項４の転動装置は、請求項１又は請求項２に記載の転動装置において、前記亜鉛被膜の厚さが０．５μｍ以上８μｍ以下であることを特徴とする。
亜鉛被膜の厚さが０．１μｍ未満であると、十分且つ持続的な防錆効果が得られないおそれがある。一方、亜鉛被膜の厚さが８μｍ超過であると、亜鉛被膜の脱落が生じやすくなり、転動装置にとって異物となるおそれがある。
Furthermore, the rolling device according to claim 3 according to the present invention is the rolling device according to claim 1 or 2, wherein the zinc coating has a thickness of 0.1 μm or more and 8 μm or less. To do.
Furthermore, the rolling device according to claim 4 according to the present invention is the rolling device according to claim 1 or 2, wherein the thickness of the zinc coating is 0.5 μm or more and 8 μm or less. .
If the thickness of the zinc coating is less than 0.1 μm, there is a possibility that a sufficient and sustained rust prevention effect cannot be obtained. On the other hand, if the thickness of the zinc coating is more than 8 μm, the zinc coating is likely to fall off, which may be a foreign matter for the rolling device.
さらに、本発明に係る請求項５の転動装置は、請求項１〜４のいずれか一項に記載の転動装置において、前記内方部材の表面，前記外方部材の表面，及び前記転動体の表面のうち少なくとも前記亜鉛被膜が備えられた部分に、深さ０．１μｍ以上５μｍ以下のディンプルを設けたことを特徴とする。
ディンプルにより亜鉛被膜と母材との密着性が向上する。また、転動装置の駆動時に脱落した亜鉛被膜がディンプル内にトラップされるので、防錆効果が長く維持される。このような効果を得るためには、ディンプルの深さを０．１μｍ以上とすることが好ましい。ただし、ディンプルの深さを５μｍ超過としても、それ以上の効果は期待できないので、ディンプルの深さは５μｍ以下とすることが好ましい。
Furthermore, the rolling device according to a fifth aspect of the present invention is the rolling device according to any one of the first to fourth aspects, wherein the surface of the inner member, the surface of the outer member, and the rolling device. A dimple having a depth of 0.1 μm or more and 5 μm or less is provided on at least a portion of the surface of the moving body provided with the zinc coating.
The dimple improves the adhesion between the zinc coating and the base material. In addition, since the zinc coating that has fallen off when the rolling device is driven is trapped in the dimples, the antirust effect is maintained for a long time. In order to obtain such an effect, the depth of the dimple is preferably set to 0.1 μm or more. However, even if the dimple depth exceeds 5 μm, no further effect can be expected. Therefore, the dimple depth is preferably 5 μm or less.
さらに、本発明に係る請求項６の転動装置は、請求項１〜５のいずれか一項に記載の転動装置において、前記亜鉛被膜の表面の中心線平均粗さＲａが０．１μｍ以上０．５μｍ以下であることを特徴とする。
このような構成であれば、防錆効果が得られるとともに、転動装置の音響特性が良好である。特に、内方部材の軌道面，外方部材の軌道面，及び転動体の転動面に亜鉛被膜を形成する場合には、亜鉛被膜の表面の中心線平均粗さＲａを上記範囲内とすることが好ましい。亜鉛被膜の表面の中心線平均粗さＲａが０．５μｍ超過であると、音響特性が不十分となるおそれがある。一方、中心線平均粗さＲａを０．１μｍ未満とすると、転動装置が高価となってしまうおそれがある。
Furthermore, the rolling device of Claim 6 which concerns on this invention is a rolling device as described in any one of Claims 1-5. The centerline average roughness Ra of the surface of the said zinc coating is 0.1 micrometer or more. It is 0.5 μm or less.
With such a configuration, an antirust effect is obtained and the acoustic characteristics of the rolling device are good. In particular, when a zinc coating is formed on the raceway surface of the inner member, the raceway surface of the outer member, and the rolling surface of the rolling element, the center line average roughness Ra of the surface of the zinc coating is within the above range. It is preferable. If the center line average roughness Ra of the surface of the zinc coating is more than 0.5 μm, the acoustic characteristics may be insufficient. On the other hand, if the center line average roughness Ra is less than 0.1 μm, the rolling device may be expensive.
Claims (6)
前記内方部材，前記外方部材，及び前記転動体のうち少なくとも一つは、その表面の少なくとも一部に、機械的エネルギーにより形成された亜鉛被膜を備えていることを特徴とする転動装置。 An inner member having a raceway surface on the outer surface, an outer member having a raceway surface opposite to the raceway surface of the inner member, and arranged on the outer side of the inner member, and rolling between the both raceway surfaces In a rolling device comprising a plurality of freely arranged rolling elements,
At least one of the inner member, the outer member, and the rolling element includes a zinc coating formed by mechanical energy on at least a part of the surface thereof. .
前記内方部材，前記外方部材，及び前記転動体のうち少なくとも一つは、その表面の少なくとも一部に、亜鉛粉末のショットピーニングにより形成された亜鉛被膜を備えていることを特徴とする転動装置。 An inner member having a raceway surface on the outer surface, an outer member having a raceway surface opposite to the raceway surface of the inner member, and arranged on the outer side of the inner member, and rolling between the both raceway surfaces In a rolling device comprising a plurality of freely arranged rolling elements,
At least one of the inner member, the outer member, and the rolling element includes a zinc coating formed by shot peening of zinc powder on at least a part of the surface thereof. Moving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005292717A JP2007100870A (en) | 2005-10-05 | 2005-10-05 | Rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005292717A JP2007100870A (en) | 2005-10-05 | 2005-10-05 | Rolling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007100870A JP2007100870A (en) | 2007-04-19 |
| JP2007100870A5 true JP2007100870A5 (en) | 2008-11-13 |
Family
ID=38028021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005292717A Pending JP2007100870A (en) | 2005-10-05 | 2005-10-05 | Rolling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007100870A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4513775B2 (en) * | 2006-03-15 | 2010-07-28 | 日本精工株式会社 | Rolling device for rolling mill roll neck |
| JP5424073B2 (en) * | 2007-11-12 | 2014-02-26 | 日本精工株式会社 | ROLLING BEARING PROCESSING METHOD AND ROLLER BEARING |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209621A (en) * | 1992-01-31 | 1993-08-20 | Ntn Corp | Touch-down bearing for magnetic bearing device |
| JPH06109022A (en) * | 1992-09-29 | 1994-04-19 | Ntn Corp | Formation of solid lubricating film for part using rolling body |
| JPH06159373A (en) * | 1992-11-12 | 1994-06-07 | Nippon Seiko Kk | Self-lubricant coating roller bearing |
| JP3869192B2 (en) * | 2000-07-17 | 2007-01-17 | 株式会社ジェイテクト | Rolling and sliding parts |
-
2005
- 2005-10-05 JP JP2005292717A patent/JP2007100870A/en active Pending
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