JP2007113691A - トランスミッション用円すいころ軸受 - Google Patents
トランスミッション用円すいころ軸受 Download PDFInfo
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- JP2007113691A JP2007113691A JP2005305776A JP2005305776A JP2007113691A JP 2007113691 A JP2007113691 A JP 2007113691A JP 2005305776 A JP2005305776 A JP 2005305776A JP 2005305776 A JP2005305776 A JP 2005305776A JP 2007113691 A JP2007113691 A JP 2007113691A
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- tapered roller
- cage
- roller bearing
- small
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Abstract
【解決手段】円すいころ軸受は、内輪2と、外輪3と、内輪2と外輪3との間に転動自在に配された複数の円すいころ4と、円すいころ4を円周所定間隔に保持する保持器5とを備えたトランスミッション用円すいころ軸受である。ころ係数γが0.94を越える。保持器5が、円すいころ4の小径端面側で連なる小環状部6と、円すいころ4の大径端面側で連なる大環状部7と、これらの環状部を連結する複数の柱部8とからなる。隣接する柱部8間に、円すいころ4の小径側を収納する部分が狭幅側、大径側を収納する部分が広幅側となる台形状のポケット9が形成される。ポケット9の狭幅側の柱部8に切欠き10aを設けた。
【選択図】 図1
Description
ころ係数γ=(Z・DA)/(π・PCD)
ここに、
Z:ころ本数
DA:ころ平均径
PCD:ころピッチ径。
アキシアル荷重:300kgf
回転速度:300〜2000rpm(100rpmピッチ)
潤滑条件:油浴潤滑(潤滑油:75W−90)
2 内輪
2a 軌道面
2b 小つば
2c 大つば
3 外輪
3a 軌道面
5 保持器
5a 柱面
5b 突起部
6 小環状部
7 大環状部
8 柱部
9 ポケット
10a、10b、10c
11 つば
Claims (6)
- 内輪と、外輪と、内輪と外輪との間に転動自在に配された複数の円すいころと、円すいころを円周所定間隔に保持する保持器とを備えた円すいころ軸受において、
ころ係数γが0.94を越え、
保持器が、円すいころの小径端面側で連なる小環状部と、円すいころの大径端面側で連なる大環状部と、これらの環状部を連結する複数の柱部とからなり、隣接する柱部間に、円すいころの小径側を収納する部分が狭幅側、大径側を収納する部分が広幅側となる台形状のポケットが形成され、
ポケットの狭幅側の柱部に切欠きを設けたことを特徴とするトランスミッション用円すいころ軸受。 - ポケットの狭幅側の小環状部にも切欠きを設けたことを特徴とする請求項1のトランスミッション円すいころ軸受。
- ポケットの広幅側の少なくとも柱部に切欠きを設けたことを特徴とする請求項1または2のトランスミッション用円すいころ軸受。
- ポケットの狭幅側に設けた切欠きの合計面積を、ポケットの広幅側に設けた切欠きの合計面積よりも広くしたことを特徴とする請求項3のトランスミッション用円すいころ軸受。
- 保持器の小環状部の軸方向外側に、内輪の小つばの外径面に対向させた径方向内向きのつばを設け、前記つばの内径面と内輪の小つばの外径面との間のすきまの上限を小つばの外径寸法の2.0%としたことを特徴とする請求項1ないし4のいずれかのトランスミッション円用すいころ軸受。
- 少なくとも円すいころの表面に、微小凹形形状のくぼみをランダムに無数に設け、このくぼみを設けた表面の面粗さパラメータRyniを0.4μm≦Ryni≦1.0μmとし、かつ、Sk値を−1.6以下としたことを特徴とする請求項1ないし5のいずれかのトランスミッション用円すいころ軸受。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005305776A JP4987278B2 (ja) | 2005-10-20 | 2005-10-20 | トランスミッション用円すいころ軸受 |
PCT/JP2006/318353 WO2007032470A1 (ja) | 2005-09-16 | 2006-09-15 | 円錐ころ軸受 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2005305776A JP4987278B2 (ja) | 2005-10-20 | 2005-10-20 | トランスミッション用円すいころ軸受 |
Publications (2)
Publication Number | Publication Date |
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JP2007113691A true JP2007113691A (ja) | 2007-05-10 |
JP4987278B2 JP4987278B2 (ja) | 2012-07-25 |
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JP2005305776A Active JP4987278B2 (ja) | 2005-09-16 | 2005-10-20 | トランスミッション用円すいころ軸受 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126841U (ja) * | 1974-04-04 | 1975-10-17 | ||
JPS5593727U (ja) * | 1978-12-22 | 1980-06-28 | ||
JPH0932858A (ja) * | 1995-07-18 | 1997-02-04 | Koyo Seiko Co Ltd | 円錐ころ軸受 |
JPH11201149A (ja) * | 1998-01-12 | 1999-07-27 | Koyo Seiko Co Ltd | 円錐ころ軸受 |
JP2002235752A (ja) * | 2001-02-07 | 2002-08-23 | Nsk Ltd | ころ軸受用保持器 |
JP2005069421A (ja) * | 2003-08-27 | 2005-03-17 | Koyo Seiko Co Ltd | 円すいころ軸受 |
JP2005188738A (ja) * | 2003-12-02 | 2005-07-14 | Ntn Corp | 円すいころ軸受 |
-
2005
- 2005-10-20 JP JP2005305776A patent/JP4987278B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126841U (ja) * | 1974-04-04 | 1975-10-17 | ||
JPS5593727U (ja) * | 1978-12-22 | 1980-06-28 | ||
JPH0932858A (ja) * | 1995-07-18 | 1997-02-04 | Koyo Seiko Co Ltd | 円錐ころ軸受 |
JPH11201149A (ja) * | 1998-01-12 | 1999-07-27 | Koyo Seiko Co Ltd | 円錐ころ軸受 |
JP2002235752A (ja) * | 2001-02-07 | 2002-08-23 | Nsk Ltd | ころ軸受用保持器 |
JP2005069421A (ja) * | 2003-08-27 | 2005-03-17 | Koyo Seiko Co Ltd | 円すいころ軸受 |
JP2005188738A (ja) * | 2003-12-02 | 2005-07-14 | Ntn Corp | 円すいころ軸受 |
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JP4987278B2 (ja) | 2012-07-25 |
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