JP2010078136A5 - - Google Patents

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Publication number
JP2010078136A5
JP2010078136A5 JP2008305026A JP2008305026A JP2010078136A5 JP 2010078136 A5 JP2010078136 A5 JP 2010078136A5 JP 2008305026 A JP2008305026 A JP 2008305026A JP 2008305026 A JP2008305026 A JP 2008305026A JP 2010078136 A5 JP2010078136 A5 JP 2010078136A5
Authority
JP
Japan
Prior art keywords
screw
ball screw
ball
solid lubricant
screw according
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.)
Pending
Application number
JP2008305026A
Other languages
Japanese (ja)
Other versions
JP2010078136A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2008305026A priority Critical patent/JP2010078136A/en
Priority claimed from JP2008305026A external-priority patent/JP2010078136A/en
Publication of JP2010078136A publication Critical patent/JP2010078136A/en
Publication of JP2010078136A5 publication Critical patent/JP2010078136A5/ja
Pending legal-status Critical Current

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Claims (7)

螺旋状のねじ溝を外周面に有するねじ軸と、前記ねじ軸のねじ溝に対向するねじ溝を内周面に有するナットと、前記両ねじ溝の間に転動自在に配された複数のボールと、前記両ねじ溝と前記ボールとの間の潤滑を行う潤滑剤と、を備えるボールねじにおいて、
内周縁部が前記ねじ軸の外周面に滑り接触する円環状の接触シールを、前記ナットの軸方向両端部に配するとともに、前記潤滑剤を、固体潤滑剤の微粒子を含有するグリースとしたことを特徴とするボールねじ。
A screw shaft having a spiral thread groove on the outer peripheral surface, a nut having a screw groove facing the screw groove of the screw shaft on the inner peripheral surface, and a plurality of rolls arranged between the screw grooves. In a ball screw comprising a ball and a lubricant that performs lubrication between the both screw grooves and the ball,
An annular contact seal whose inner peripheral edge is in sliding contact with the outer peripheral surface of the screw shaft is disposed at both axial ends of the nut, and the lubricant is grease containing fine particles of a solid lubricant. Ball screw characterized by
前記グリースはUSDAのカテゴリーH1に属することを特徴とする請求項1に記載のボールねじ。 The ball screw according to claim 1, wherein the grease belongs to USDA category H1 . 前記固体潤滑剤をポリテトラフルオロエチレン,トリフェニルフォスホロチオネート,及び硫化亜鉛のうちの少なくとも一種としたことを特徴とする請求項2に記載のボールねじ。 3. The ball screw according to claim 2 , wherein the solid lubricant is at least one of polytetrafluoroethylene, triphenylphosphorothionate, and zinc sulfide . 前記固体潤滑剤を有機モリブデン及び二硫化モリブデンの少なくとも一方としたことを特徴とする請求項1に記載のボールねじ。 The ball screw according to claim 1 , wherein the solid lubricant is at least one of organic molybdenum and molybdenum disulfide . 前記固体潤滑剤の微粒子の少なくとも一部は、粒径が0.5μm以上10μm以下であることを特徴とする請求項1〜4のいずれか一項に記載のボールねじ。   5. The ball screw according to claim 1, wherein a particle diameter of at least a part of the fine particles of the solid lubricant is 0.5 μm or more and 10 μm or less. 前記各ボールの間にセパレータを配したことを特徴とする請求項1〜5のいずれか一項に記載のボールねじ。   The ball screw according to any one of claims 1 to 5, wherein a separator is disposed between the balls. 請求項1〜6のいずれか一項に記載のボールねじを備えることを特徴とする射出成形機。   An injection molding machine comprising the ball screw according to any one of claims 1 to 6.
JP2008305026A 2008-08-26 2008-11-28 Ball screw and injection molding machine Pending JP2010078136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008305026A JP2010078136A (en) 2008-08-26 2008-11-28 Ball screw and injection molding machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008216923 2008-08-26
JP2008305026A JP2010078136A (en) 2008-08-26 2008-11-28 Ball screw and injection molding machine

Publications (2)

Publication Number Publication Date
JP2010078136A JP2010078136A (en) 2010-04-08
JP2010078136A5 true JP2010078136A5 (en) 2012-01-12

Family

ID=42208812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008305026A Pending JP2010078136A (en) 2008-08-26 2008-11-28 Ball screw and injection molding machine

Country Status (1)

Country Link
JP (1) JP2010078136A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5699762B2 (en) * 2011-04-04 2015-04-15 日本精工株式会社 Ball screw seal
JP6232851B2 (en) * 2013-08-29 2017-11-22 株式会社アドヴィックス POWER CONVERSION DEVICE AND ELECTRIC BRAKE DEVICE FOR VEHICLE HAVING THE POWER CONVERSION DEVICE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09273552A (en) * 1996-04-03 1997-10-21 Nippon Seiko Kk Direct acting device
JP2001131569A (en) * 1999-11-04 2001-05-15 Ntn Corp Solid lubricant for food equipment and rolling bearing for food equipment
JP2006283910A (en) * 2005-04-01 2006-10-19 Ntn Corp Rolling bearing for food processing machine
JP2007127240A (en) * 2005-11-07 2007-05-24 Nsk Ltd Ball screw, electric injection molding machine, and electric press device
JP2007211874A (en) * 2006-02-09 2007-08-23 Nsk Ltd Electric-driven linear actuator

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