標準編號:	GB/T 290-1998
中文名稱:	滾動軸承 沖壓外圈滾針軸承 外形尺寸
英文名稱:	Rolling bearings—Needle roller bearings,drawn cup without inner rings—Boundary dimensions
中標分類:	J11    滾動軸承
行業分類:	GB    國家標準
ICS分類:	21.100.20 21.100.20    滾動軸承 21.100.20
發布機構:	國家質量技術監督局
發布日期:	1998-08-12
實施日期:	1999-7-1
標準狀態:	superseded
被新標準替代:	GB/T 290-2017 滾動軸承 無內圈沖壓外圈滾針軸承 外形尺寸
被替代日期:	2018-5-1
作廢日期:	2018-05-01
替代舊標準:	GB 290-1989 滾動軸承 沖壓外圈滾針軸承 外形尺寸
翻譯語言:	英文
文件格式:	PDF
中文字符數:	8000 字
翻譯價格(元):	560.0
交付時間:	付款后 1 個工作日

1 Scope This Standard specifies the boundary dimensions of diameter series 1 of drawn cup needle roller bearings without inner rings (hereinafter referred to as bearings). This Standard is applicable to the design, manufacture and user selection of drawn cup needle roller bearings. 2 Symbols and Abbreviated Terms (see Figures 1 and 2) Fw: Needle roller complement bore diameter; D: Drawn cup outside diameter; C: Drawn cup width; C1: End thickness of profiled end drawn cup; rs: Single chamfer dimension; rsmin: Smallest permissible single chamfer dimension; d0: Oil orifice diameter.

Contents Foreword I 1 Scope 2 Symbols and Abbreviated Terms (see Figures 1 and 2) 3 Boundary Dimensions 4 Designation