ROLLING BEARING, AND SPINDLE DEVICE FOR MACHINE TO

专利名称：ROLLING BEARING, AND SPINDLE DEVICE

FOR MACHINE TOOL

发明人：MINAKAMI, Atsushi申请号：EP13806464.7申请日：20130620公开号：EP2865910A1公开日：20150429

专利附图：

摘要：A rolling bearing (1) is provided with an outer ring (2), an inner ring (3), rollers (4)which are provided in a reliable manner between the outer ring (2) and the inner ring (3),and a retainer (10) which has pockets (11) formed at predetermined intervals in the

circumferential direction and respectively retaining the rollers (4). The retainer (10) is ofthe outer ring guide type or the inner ring guide type. The retainer (10) has retainerguide surfaces on one axial side and the other axial side, respectively, of each of therollers (4). If the width of the retainer guide surface on the one axial side is ΔL1, the widthof the retainer guide surface on the other axial side is ΔL2, and the gap of an axial pocketis ΔP, the rolling bearing (1) satisfies the expressions of ΔP ≤ ΔL1 ≤ 4 × ΔP and ΔP ≤ ΔL2≤ 4 × ΔP.

申请人：NSK Ltd.

地址：6-3 Ohsaki 1-chome Shinagawa-ku Tokyo 141-8560 JP

国籍：JP

代理机构：Grünecker Patent- und Rechtsanwälte PartG mbB

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