標準編號:	GB/T 300-2008
中文名稱:	滾動軸承 四列圓錐滾子軸承 外形尺寸
英文名稱:	Rolling bearings—Four row tapered roller bearings—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:	國家質量監督檢驗檢疫總局 國家標準化管理委員會
發布日期:	2008-2-28
實施日期:	2008-8-1
標準狀態:	superseded
被新標準替代:	GB/T 300-2023 滾動軸承 四列圓錐滾子軸承 外形尺寸
被替代日期:	2023-12-1
替代舊標準:	GB/T 300-1995 滾動軸承 四列圓錐滾子軸承 外形尺寸
翻譯語言:	英文
文件格式:	PDF
中文字符數:	3000 字
翻譯價格(元):	280.0
交付時間:	付款后 1 個工作日

1 Scope This standard specifies the boundary dimensions of four row tapered roller bearings. This standard is applicable to four row tapered roller bearings and is used for the bearing manufacturer's design and the customer's type selection. 2 Symbols (See Figure 1) For the purpose of this standard, the following symbols apply. Unless otherwise stated, all the symbols shown in figures and the values shown in tables denote the nominal dimensions. B: Total width of bearing inner ring B1: Width of inner ring with double raceways b: Width of outer ring spacer C: Total width of bearing outer ring D: Bearing outside diameter d: Bearing bore diameter r1: Front face chamfer dimension of inner ring r1smin: Smallest single front face chamfer dimension of inner ring r2: Back face chamfer dimension of outer ring r2smin: Smallest single back face chamfer dimension of outer ring

Foreword I 1 Scope 2 Symbols (See Figure 1) 3 Boundary Dimensions 4 Marking Example