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1. 发明专利

JP2014167328A Rolling bearing device for crane sheave 审中-公开
标题翻译：用于起重机的滚动轴承装置
公开(公告)号：JP2014167328A
公开(公告)日：2014-09-11
申请号：JP2013039391
申请日：2013-02-28
申请人： Nsk Ltd , 日本精工株式会社
发明人： TATEYAMA CHISATO
IPC分类号： F16C19/28 , F16C19/54 , F16C33/58 , F16C33/78
摘要： PROBLEM TO BE SOLVED: To provide a rolling bearing device for a crane sheave, capable of reducing its surplus components and manufacturing cost and of preventing high-temperature deterioration of lubricant to achieve a longer life.SOLUTION: The rolling bearing device for the crane sheave includes: at least three double-row rolling bearings joined to one another in the axial direction of the bearings, each of the double-row rolling bearings including an outer ring having two rows of outer ring raceway surfaces on the inner peripheral face, a pair of inner rings each having a single row of inner ring raceway surface on the outer peripheral face, and abutting on each other in the axial direction, and a plurality of rolling elements rollably arranged between each of the two rows of outer ring raceway surfaces of the outer ring and each of the inner ring raceway surfaces of the pair of inner rings. Only at both ends of the bearing device for the crane sheave, sealing devices are provided.
摘要翻译：要解决的问题：提供一种用于起重机滑轮的滚动轴承装置，其能够减少其剩余部件和制造成本，并且防止润滑剂的高温劣化以实现更长的寿命。解决方案：用于起重机滑轮的滚动轴承装置包括：在轴承的轴向上彼此接合的至少三个双列滚动轴承，每个双列滚动轴承包括在内周面上具有两排外圈滚道表面的外圈，一对的内圈，在外周面上具有单排的内圈滚道面，并且在轴向上彼此抵接;以及多个滚动元件，其滚动地布置在所述两列外圈滚道表面的每一列之间外圈和一对内圈的每个内圈滚道表面。只有在起重机滑轮轴承装置的两端，才提供密封装置。

2. 发明专利

JP2013064496A Thrust bearing for hydraulic continuously variable transmission 有权
标题翻译：用于液压连续可变传动的轴承
公开(公告)号：JP2013064496A
公开(公告)日：2013-04-11
申请号：JP2012186844
申请日：2012-08-27
申请人： Nsk Ltd , 日本精工株式会社
发明人： TATEYAMA CHISATO , MIYAMOTO MASATO
IPC分类号： F16C19/12 , F16C33/64 , F16H39/14
CPC分类号： F16C33/585 , F03C1/0671 , F04B1/148 , F04B1/2085 , F04B1/22 , F16C19/10 , F16C2240/40 , F16C2240/60 , F16C2310/00 , F16C2360/00 , F16C2360/42 , F16C2360/44 , F16H39/14
摘要： PROBLEM TO BE SOLVED: To provide a long-life thrust bearing for a hydraulic continuously variable transmission, in which breakage of an inner ring is prevented.SOLUTION: The thrust bearing is built into the hydraulic continuously variable transmission, and includes: the inner ring in contact with a piston of a piston chamber of a variable-capacity pump; an outer ring secured to an inclined plate; and a plurality of rolling elements held between the inner ring and the outer ring via a retainer. The thrust bearing for the hydraulic continuously variable transmission is characterized in that the groove base thickness (Ti) of the inner ring is at least 40% of the diameter of the rolling elements, and the groove base thickness (Te) of the outer ring is at least 15% of the diameter of the rolling elements.
摘要翻译：要解决的问题：提供一种用于防止内圈破损的液压无级变速器的长寿命推力轴承。解决方案：推力轴承内置在液压无级变速器中，包括：内圈与可变容量泵活塞室的活塞接触; 固定在倾斜板上的外圈; 以及经由保持器保持在所述内圈和所述外圈之间的多个滚动元件。用于液压无级变速器的推力轴承的特征在于，内圈的槽底厚度（Ti）至少为滚动元件直径的40％，外圈的槽底厚度（Te）为滚动体直径的至少15％。版权所有（C）2013，JPO＆INPIT

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