专利名称：BEARING PART AND ROLLING BEARING发明人：MURAMATSU, KATSUTOSHI申请号：EP09766674申请日：20090617公开号：EP2302243A4公开日：20120125
摘要：At least one of an outer ring (11), an inner ring (12) and balls (13) can be formedof ceramics capable of suppressing impact on another bearing component more thansilicon nitride to provide a bearing component usable in an application where an abruptlyvarying load is imposed thereon.
申请人：NTN CORPORATION
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