JPS6360243B2 - - Google Patents
Info
- Publication number
- JPS6360243B2 JPS6360243B2 JP9796084A JP9796084A JPS6360243B2 JP S6360243 B2 JPS6360243 B2 JP S6360243B2 JP 9796084 A JP9796084 A JP 9796084A JP 9796084 A JP9796084 A JP 9796084A JP S6360243 B2 JPS6360243 B2 JP S6360243B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- cage
- rolling
- rolling elements
- outer rings
- 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.)
- Expired
Links
- 238000005096 rolling process Methods 0.000 claims description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 12
- 239000010409 thin film Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 description 17
- 239000007787 solid Substances 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/44—Selection of substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6696—Special parts or details in view of lubrication with solids as lubricant, e.g. dry coatings, powder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【発明の詳細な説明】
(1) 産業上の利用分野
この発明は、固体潤滑剤を使用した転がり軸受
に関するものである。[Detailed Description of the Invention] (1) Industrial Application Field The present invention relates to a rolling bearing using a solid lubricant.
(2) 従来の技術
一般に転がり軸受は、内外輪と転動体間及び転
動体と保持器間にグリース等の潤滑剤を供給し、
それぞれの間に発生するすべり摩擦や転がり摩擦
を減少させ、軸受の耐久性を向上させることが行
なわれている。(2) Conventional technology In general, rolling bearings supply lubricant such as grease between the inner and outer rings and the rolling elements, and between the rolling elements and the cage.
Efforts are being made to improve the durability of bearings by reducing the sliding friction and rolling friction that occur between them.
ところで、転がり軸受を高真空等の条件で使用
する場合、グリース等の蒸気圧の高い潤滑剤は雰
囲気中に蒸発してしまうことになり、このため、
金、銀、鉛等の蒸気圧の低い固体潤滑剤の使用が
必要になる。 By the way, when rolling bearings are used in conditions such as high vacuum, lubricants with high vapor pressure such as grease will evaporate into the atmosphere.
It is necessary to use solid lubricants with low vapor pressure such as gold, silver, or lead.
第２図は転がり軸受の従来の固体潤滑構造を示
しており、内輪１と外輪２の転走面、内外輪間に
介在させた転動体３の表面、転動体保持器４の外
周面の各々に、前記固体潤滑剤を用いて固体潤滑
膜１ａ，２ａ，３ａ，４ａを形成するようにして
いた。 Figure 2 shows the conventional solid lubrication structure of a rolling bearing, showing the raceway surfaces of the inner ring 1 and outer ring 2, the surface of the rolling elements 3 interposed between the inner and outer rings, and the outer peripheral surface of the rolling element cage 4. In addition, the solid lubricant films 1a, 2a, 3a, and 4a were formed using the solid lubricant.
しかし、すべり及び転がり面の全てを固体潤滑
膜１ａ，２ａ，３ａ，４ａにした潤滑構造は、回
転初期において安定した摩擦トルクが維持される
が、上記潤滑膜に摩耗や剥離を生じたとき、摩耗
や剥離部分への固体潤滑剤の供給が起こらず潤滑
切れとなり、摩擦トルクが上昇して軸受の寿命と
なる。 However, the lubrication structure in which all the sliding and rolling surfaces are made of solid lubricant films 1a, 2a, 3a, and 4a maintains stable friction torque at the initial stage of rotation, but when the lubricant film wears or peels off, Solid lubricant is not supplied to worn or peeled parts, resulting in a lack of lubrication, increasing frictional torque and ending the life of the bearing.
(3) 発明が解決しようとする問題点
この発明の解決しようとする問題点は、固体潤
滑剤を使用して軸受の耐久寿命を向上させ、高温
や高真空の条件においても使用できるようにする
点にある。(3) Problems to be solved by the invention The problems to be solved by this invention are to improve the durable life of bearings by using a solid lubricant and to enable them to be used even under high temperature and high vacuum conditions. At the point.
(4) 問題点を解決するための手段
上記の問題点を解決するために、この発明は、
内外輪の転走面に鉛薄膜を設け、保持器を鉛含有
銅系金属で形成したものである。(4) Means for solving the problems In order to solve the above problems, this invention
A thin lead film is provided on the raceway surfaces of the inner and outer rings, and the cage is made of lead-containing copper metal.
(5) 作用
内外輪の転走面に設けた鉛薄膜が回転初期にお
いて転動体に転移することにより潤滑剤として働
く。(5) Function The thin lead film provided on the raceway surfaces of the inner and outer rings acts as a lubricant by transferring to the rolling elements at the beginning of rotation.
内外輪と転動体の摩擦の繰返しにより、鉛薄膜
が圧延されて転走面の潤滑が不足しても、転動体
に転移した鉛が保持器に含有させた鉛の供給を促
し、転がり及びすべり部分の潤滑を枯渇すること
なく維持するものである。 Even if the thin lead film is rolled due to repeated friction between the inner and outer rings and the rolling elements and the raceway surface lacks lubrication, the lead transferred to the rolling elements promotes the supply of lead contained in the cage, preventing rolling and sliding. It maintains the lubrication of the parts without running out of lubrication.
(6) 実施例
以下、この発明を添付図面の第１図に示す実施
例に基づいて説明する。(6) Embodiment Hereinafter, the present invention will be explained based on an embodiment shown in FIG. 1 of the accompanying drawings.
図示のように、内輪１１と外輪１２の間に転動
体１３が介在し、この転動体１３が保持器１４に
より保持されている。 As illustrated, rolling elements 13 are interposed between the inner ring 11 and the outer ring 12, and the rolling elements 13 are held by a retainer 14.
上記内輪１１と外輪１２の転走面１１ａと１２
ａには鉛薄膜１１ｂ，１２ｂが設けられ、また鋼
球転動体１３の保持器１４は、鉛を含有した銅系
金属を用いて形成されている。 Raceway surfaces 11a and 12 of the inner ring 11 and outer ring 12
lead thin films 11b and 12b are provided on a, and the cage 14 of the steel ball rolling element 13 is formed using a copper-based metal containing lead.
内外輪１１，１２の転走面に設けた鉛薄膜１１
ｂ，１２ｂは回転初期における転動体１３の潤滑
剤として働くと共に、転動体１３の表面に転移し
たものが保持器１４に含有されている鉛を引出す
役目を果すものである。 Lead thin film 11 provided on the raceway surfaces of the inner and outer rings 11 and 12
b and 12b act as a lubricant for the rolling element 13 at the initial stage of rotation, and also serve to draw out the lead contained in the cage 14 transferred to the surface of the rolling element 13.
内外輪１１，１２の転走面に設けた鉛薄膜１１
ｂ，１２ｂ及び保持器１４に含有させた鉛は、保
持器１４を構成する銅との親和性が悪く、従つて
転動体１３の表面に転移した鉛は保持器１４に含
まれている鉛を取出し、すべり及び転がり部分へ
の潤滑剤として供給すると共に、保持器１４の銅
が転動体１３に移着するのを抑制することにな
る。 Lead thin film 11 provided on the raceway surfaces of the inner and outer rings 11 and 12
The lead contained in b, 12b and the cage 14 has poor affinity with the copper constituting the cage 14. Therefore, the lead transferred to the surface of the rolling elements 13 will remove the lead contained in the cage 14. It is supplied as a lubricant to the extraction, sliding and rolling parts, and also prevents the copper in the retainer 14 from being transferred to the rolling elements 13.
上記内外輪１１，１２に設ける鉛薄膜１１ｂ，
１２ｂの厚さは実験の結果0.1〜0.3μm程度に設定
するのが好ましく、上記厚さの設定により、トル
クが低く安定し、保持器１４の摩耗量が少なく、
耐久性を向上させることができる。 Lead thin film 11b provided on the inner and outer rings 11 and 12,
As a result of experiments, the thickness of the retainer 12b is preferably set to about 0.1 to 0.3 μm. By setting the above thickness, the torque is low and stable, the amount of wear on the retainer 14 is small, and
Durability can be improved.
ちなみに、鉛薄膜１１ｂ，１２ｂの厚さを0.4
〜0.6μmに厚くすると、保持器１４から転動体１
３への鉛の転移よりも内外輪１１，１２の鉛薄膜
１１ｂ，１２ｂの転移が優先することになり、転
動体１３の表面を鉛が覆つてしまい、保持器１４
と転動体１３間の摩擦により保持器１４が摩耗し
て鉛を供給する前にトルク上昇が起こり、軸受の
耐久性を向上させることが望めないことになる。 By the way, the thickness of the lead thin films 11b and 12b is 0.4
When the thickness is increased to ~0.6 μm, the rolling elements 1 from the cage 14
The transfer of lead thin films 11b and 12b of the inner and outer rings 11 and 12 takes priority over the transfer of lead to the rings 3, and the surface of the rolling elements 13 is covered with lead, causing the cage 14
The retainer 14 is worn out due to friction between the bearing and the rolling elements 13, and the torque increases before lead is supplied, making it impossible to expect to improve the durability of the bearing.
前記保持器１４の構成材料である銅系金属は、
鉛を保持するための補強材であると共に、転動体
１３の摩擦により摩耗する軟質金属の要求を満た
すものであり、銅は鋼製転動体１３との親和性
（付着性）が良く、従つて転動体１３及び内外輪
１１，１２に転移しても圧延されてしまい真円度
を崩さないという働きをする。この結果剥離して
摩耗粉となる量が少ないという利点がある。 The copper-based metal that is the constituent material of the cage 14 is
It serves as a reinforcing material to hold lead, and also satisfies the requirements for soft metals that wear out due to the friction of the rolling elements 13. Copper has good affinity (adhesiveness) with the steel rolling elements 13, and therefore Even if it is transferred to the rolling element 13 and the inner and outer rings 11 and 12, it is rolled and serves to maintain the roundness. As a result, there is an advantage that the amount of peeling and becoming abrasion powder is small.
また、鉛含有銅系金属は、高真空中（10-7torr
前後）における高温の条件でも、他の耐熱性高分
子材料よりも放出ガス量が少なく、例えば280℃
の条件で４×107回転後も何ら異常の発生はなく、
従つてＸ線管球のような真空管中で用いても真空
度に悪影響を及ぼすことがない。 In addition, lead-containing copper-based metals can be used in high vacuum (10 -7 torr
The amount of gas released is lower than other heat-resistant polymer materials even under high-temperature conditions (around 280℃).
No abnormality occurred after 4×10 7 rotations under the following conditions.
Therefore, even when used in a vacuum tube such as an X-ray tube, the degree of vacuum will not be adversely affected.
更に、保持器１４の鉛含有量は保持器摩耗速度
の増加を生じさせない範囲、例えば７〜11％程度
が適している。 Further, the lead content of the cage 14 is suitably within a range that does not cause an increase in the cage wear rate, for example, about 7 to 11%.
この発明の転がり軸受は上記のような構成であ
り、鋼球転動体１３は内輪１１と外輪１２の転走
面１１ａ，１２ａに設けた鉛薄膜１１ｂ，１２ｂ
及び鉛を含有する保持器１４と接している。 The rolling bearing of the present invention has the above-mentioned structure, and the steel ball rolling elements 13 are made of lead thin films 11b, 12b provided on the raceway surfaces 11a, 12a of the inner ring 11 and outer ring 12.
and the cage 14 containing lead.
回転初期は内外輪の転走面に設けた鉛薄膜１１
ｂ，１２ｂが転動体１３の表面に転移することに
より潤滑剤として働く。 At the initial stage of rotation, the lead thin film 11 provided on the raceway surfaces of the inner and outer rings
b, 12b transfer to the surface of the rolling element 13, thereby acting as a lubricant.
また、内外輪１１，１２と転動体１３間の摩擦
の繰返しにより鉛薄膜１１ｂ，１２ｂは圧延さ
れ、転走面１１ａ，１２ａの潤滑剤となる鉛が不
足してくるが、これと同時に、転動体１３に転移
した鉛が保持器１４からの鉛の供給を促すため、
内外輪１１，１２と転動体１３間への鉛の供給が
維持され、潤滑剤となる鉛は枯渇することなく、
軸受は円滑に回転することになる。 Further, due to repeated friction between the inner and outer rings 11, 12 and the rolling elements 13, the lead thin films 11b, 12b are rolled, and lead, which serves as a lubricant for the raceway surfaces 11a, 12a, becomes insufficient. Since the lead transferred to the moving body 13 promotes the supply of lead from the retainer 14,
The supply of lead between the inner and outer rings 11, 12 and the rolling elements 13 is maintained, and the lead serving as a lubricant is not depleted.
The bearing will rotate smoothly.
(7) 効果
以上のように、この発明によると上記のような
構成であるので、以下に示す効果がある。(7) Effects As described above, since the present invention has the above-described configuration, it has the following effects.
（） 内外輪の転走面に鉛薄膜を形成したの
で、内外輪と転動体間の回転初期における摩擦
トルクを低減することができる。() Since a thin lead film is formed on the raceway surfaces of the inner and outer rings, it is possible to reduce the frictional torque between the inner and outer rings and the rolling elements at the initial stage of rotation.
（） 保持器に鉛を含有させたので、この鉛を
内外輪と転動体間に供給することができ、鉛潤
滑剤の長期にわたる供給により、寿命の大幅な
向上を図ることができる。() Since the cage contains lead, this lead can be supplied between the inner and outer rings and the rolling elements, and by supplying lead lubricant over a long period of time, the life can be significantly improved.
（） 保持器を鉛含有銅系金属で形成したの
で、主成分の銅が鋼製転動体との親和性が良い
ことより、摩耗粉の発生を少なくでき、軸受周
辺の環境汚染を低減できる。() Since the cage is made of lead-containing copper-based metal, copper, which is the main component, has good compatibility with steel rolling elements, which reduces the generation of wear particles and reduces environmental pollution around the bearing.
（） 内外輪の転走面に鉛薄膜を形成したの
で、転動体への転移により、転動体のすべり及
び転がり面に対する潤滑が確実に行なえ、保持
器の摩耗量は鉛薄膜を形成していない軸受に対
し２分の１以下にすることができる。() Since a thin lead film is formed on the raceway surfaces of the inner and outer rings, the transfer to the rolling elements ensures lubrication of the sliding and rolling surfaces of the rolling elements, and the amount of wear on the cage is reduced by the formation of a thin lead film. It can be reduced to one-half or less of the bearing.
つまり、保持器のポケツト部の摩耗が寿命を
左右するとすれば、鉛薄膜を形成した軸受は形
成しない軸受に対し２倍以上の寿命となる。 In other words, if the wear of the pocket portion of the retainer affects the service life, then the life of a bearing with a thin lead film formed thereon is more than twice as long as that of a bearing without such a film.
（） 保持器を鉛含有銅系金属で形成したの
で、高真空及び高温での使用も支障なく行なえ
る。() Since the cage is made of lead-containing copper-based metal, it can be used in high vacuum and high temperatures without any problems.
第１図はこの発明に係る転がり軸受の縦断面
図、第２図は従来の転がり軸受を示す縦断面図で
ある。
１１……内輪、１２……外輪、１１ａ，１２ａ
……転走面、１１ｂ，１２ｂ……鉛薄膜、１３…
…転動体、１４……保持器。
FIG. 1 is a longitudinal sectional view of a rolling bearing according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional rolling bearing. 11...Inner ring, 12...Outer ring, 11a, 12a
...Rolling surface, 11b, 12b...Lead thin film, 13...
...Rolling element, 14...Cage.
Claims (1)
保持した転がり軸受において、内外輪の転走面に
鉛薄膜を設け、保持器を鉛含有銅系金属で形成し
たことを特徴とする転がり軸受。 ２ 内外輪の転走面に設けた鉛薄膜の厚さが0.1
〜0.3μmである特許請求の範囲第１項に記載の転
がり軸受。 ３ 保持器を形成する銅系金属の鉛含有量が７〜
11％である特許請求の範囲第１項に記載の転がり
軸受。[Scope of Claims] 1. A rolling bearing in which rolling elements interposed between an inner ring and an outer ring are held by a cage, in which a thin lead film is provided on the raceway surfaces of the inner and outer rings, and the cage is made of a lead-containing copper metal. A rolling bearing characterized by: 2 The thickness of the lead thin film provided on the raceway surfaces of the inner and outer rings is 0.1
The rolling bearing according to claim 1, wherein the rolling bearing has a diameter of 0.3 μm. 3 The lead content of the copper metal that forms the cage is 7~
The rolling bearing according to claim 1, wherein the rolling bearing is 11%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9796084A JPS60241516A (en) | 1984-05-14 | 1984-05-14 | Roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9796084A JPS60241516A (en) | 1984-05-14 | 1984-05-14 | Roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60241516A JPS60241516A (en) | 1985-11-30 |
| JPS6360243B2 true JPS6360243B2 (en) | 1988-11-24 |
Family
ID=14206236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9796084A Granted JPS60241516A (en) | 1984-05-14 | 1984-05-14 | Roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60241516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0394741U (en) * | 1990-01-17 | 1991-09-26 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62270826A (en) * | 1986-01-09 | 1987-11-25 | Nippon Seiko Kk | Rolling bearing |
| DE69219330T2 (en) * | 1991-06-05 | 1997-09-11 | Mpb Corp | BEARING WITH COATING FROM A CORROSION-RESISTANT ZINC ALLOY |
| USRE35860F1 (en) * | 1991-06-05 | 2001-01-02 | Timken Co | Corrosion-resistant zinc-nickel plated bearing races |
-
1984
- 1984-05-14 JP JP9796084A patent/JPS60241516A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0394741U (en) * | 1990-01-17 | 1991-09-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60241516A (en) | 1985-11-30 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |