JP2007057479A5 - - Google Patents

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Publication number
JP2007057479A5
JP2007057479A5 JP2005246039A JP2005246039A JP2007057479A5 JP 2007057479 A5 JP2007057479 A5 JP 2007057479A5 JP 2005246039 A JP2005246039 A JP 2005246039A JP 2005246039 A JP2005246039 A JP 2005246039A JP 2007057479 A5 JP2007057479 A5 JP 2007057479A5
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Japan
Prior art keywords
adhesive
magnetic encoder
slinger
polyamide
magnetic
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JP2005246039A
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Japanese (ja)
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JP4706392B2 (en
JP2007057479A (en
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Priority to JP2005246039A priority Critical patent/JP4706392B2/en
Priority claimed from JP2005246039A external-priority patent/JP4706392B2/en
Publication of JP2007057479A publication Critical patent/JP2007057479A/en
Publication of JP2007057479A5 publication Critical patent/JP2007057479A5/ja
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Publication of JP4706392B2 publication Critical patent/JP4706392B2/en
Expired - Fee Related legal-status Critical Current
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Claims (7)

回転体に外嵌可能な円筒部と、該円筒部から半径方向外方に広がるように形成されるフランジ部とを有するスリンガと、該スリンガのフランジ部の外側面に接着剤によって取り付けられ、円周方向に多極着磁された略円環状の磁石部と、を備える磁気エンコーダであって、
前記磁石部が、磁性体粉と、バインダーとして使用される熱可塑性樹脂と、を含有するプラスチック磁石材料からなり、
前記磁石部と前記スリンガとを接合する接着剤層の厚さは、２μｍ以上４０μｍ以下であることを特徴とする磁気エンコーダ。 A slinger having a cylindrical portion that can be externally fitted to the rotating body, and a flange portion formed so as to spread radially outward from the cylindrical portion, and attached to the outer surface of the flange portion of the slinger by an adhesive, A substantially annular magnet portion magnetized in the circumferential direction with multiple poles, and a magnetic encoder comprising:
The magnet part is made of a plastic magnet material containing magnetic powder and a thermoplastic resin used as a binder,
The magnetic encoder is characterized in that a thickness of an adhesive layer for joining the magnet part and the slinger is 2 μm or more and 40 μm or less. 前記熱可塑性樹脂が、ポリアミド６、ポリアミド１２、ポリアミド６１２、ポリアミド１１、ポリフェニレンサルファイド、変性ポリアミド１２樹脂、及び、変性ポリエステル樹脂からなる群から選ばれる少なくとも一つであることを特徴とする請求項１に記載の磁気エンコーダ。 The thermoplastic resin is at least one selected from the group consisting of polyamide 6, polyamide 12, polyamide 612, polyamide 11, polyphenylene sulfide, modified polyamide 12 resin, and modified polyester resin. The magnetic encoder described in 1. 前記磁性体粉は、フェライト系磁性体粉又は希土類系磁性体粉であることを特徴とする請求項１又は２に記載の磁気エンコーダ。 The magnetic encoder according to claim 1 or 2, wherein the magnetic powder is ferrite magnetic powder or rare earth magnetic powder . 前記接着剤は、フェノール樹脂系接着剤、及び、エポキシ樹脂系接着剤からなる群から選ばれる少なくとも一つであることを特徴とする請求項１〜３のいずれかに記載の磁気エンコーダ。The magnetic encoder according to claim 1, wherein the adhesive is at least one selected from the group consisting of a phenol resin-based adhesive and an epoxy resin-based adhesive. 固定輪と、回転輪と、前記固定輪と前記回転輪との間で周方向に転動自在に配置される複数の転動体と、前記回転輪に固定される請求項１〜４のいずれかに記載の磁気エンコーダとを備えることを特徴とする転がり軸受ユニット。5. The fixed wheel, the rotating wheel, the plurality of rolling elements arranged to freely roll in the circumferential direction between the fixed wheel and the rotating wheel, and the rotating wheel fixed to the rotating wheel. A rolling bearing unit comprising the magnetic encoder according to claim 1. 回転体に外嵌可能なスリンガと、該スリンガに接着剤によって取り付けられる磁石部と、を備える磁気エンコーダの製造方法であって、A method of manufacturing a magnetic encoder comprising: a slinger that can be externally fitted to a rotating body; and a magnet portion that is attached to the slinger with an adhesive,
前記接着剤を前記スリンガに塗布し、Applying the adhesive to the slinger;
前記接着剤が塗布された前記スリンガをコアにしてプラスチック磁石材料をインサート成形し、Plastic magnet material is insert-molded with the slinger coated with the adhesive as a core,
該インサート成形時に半硬化状態の前記接着剤は、前記プラスチック磁石材料の熱、又は該熱と成形後の２次加熱とによって完全硬化状態とされ、且つ、The adhesive that is semi-cured at the time of insert molding is completely cured by the heat of the plastic magnet material or by the heat and secondary heating after molding, and
前記接着剤は、２μｍ以上４０μｍ以下の厚さを有する接着剤層を形成することを特徴とする磁気エンコーダの製造方法。The method of manufacturing a magnetic encoder, wherein the adhesive forms an adhesive layer having a thickness of 2 μm or more and 40 μm or less. 前記接着剤層は、２μｍ以上３０μｍ以下の厚さであることを特徴とする請求項６に記載の磁気エンコーダの製造方法。  The method for manufacturing a magnetic encoder according to claim 6, wherein the adhesive layer has a thickness of 2 μm to 30 μm.
JP2005246039A 2005-08-26 2005-08-26 Magnetic encoder, manufacturing method thereof, and rolling bearing unit Expired - Fee Related JP4706392B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005246039A JP4706392B2 (en) 2005-08-26 2005-08-26 Magnetic encoder, manufacturing method thereof, and rolling bearing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005246039A JP4706392B2 (en) 2005-08-26 2005-08-26 Magnetic encoder, manufacturing method thereof, and rolling bearing unit

Publications (3)

Publication Number Publication Date
JP2007057479A JP2007057479A (en) 2007-03-08
JP2007057479A5 true JP2007057479A5 (en) 2008-09-04
JP4706392B2 JP4706392B2 (en) 2011-06-22

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Family Applications (1)

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JP2005246039A Expired - Fee Related JP4706392B2 (en) 2005-08-26 2005-08-26 Magnetic encoder, manufacturing method thereof, and rolling bearing unit

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JP (1) JP4706392B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6536104B2 (en) * 2014-06-05 2019-07-03 中西金属工業株式会社 Method of manufacturing annular insert molded article

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4018289B2 (en) * 1999-03-19 2007-12-05 キヤノン株式会社 Development blade manufacturing method
US7592798B2 (en) * 2004-01-22 2009-09-22 Nsk Ltd. Magnetic encoder and bearing

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