轴承参数

尺寸
标准
  • (R)NA 22 designs
    ISO 15:2011, dimension series 22, except for the outer ring width
  • NATR, NATV, NUTR .. A, PWTR designs
    ISO 7063:2003 and ANSI/ABMA Standard 18.1-1982 (where standardized)
  • (R)STO
    Not standardized
外圈运行表面轮廓
  • (R)STO, (R)NA 22, NATR, NATV designs
    Radius = 500 mm
  • NNTR design
    D ≤ 260 mm → Radius = 10 000 mm
    D ≥ 290 mm → Radius = 15 000 mm
  • NATR .. PPA, NATV .. PPA, NUTR .. A, PWTR designs
    Improved crowned profile for better load distribution, higher stiffness and reduced wear
公差

有关更
多信息
(→ Tolerances)

Normal, except:

  • diameter of the crowned running surface, NNTR design: h10
  • diameter of the crowned running surface, other designs: 0/–0,05 mm
  • width B, NNTR design: 0/–0,5 mm
  • width B, NATR, NATV, NUTR .. A, PWTR designs: h12
  • inside diameter Fw, RSTO, RNA 22 designs: F6

普通级公差等级值: ISO 492:2014(table 1)。

Values for ISO tolerance classes h7, h9, h10, h12 and F6: table 2

内部游隙
  • STO 和 NA 22 设计
    普通组
  • 其他设计
    C2 和普通组之间

值: ISO 5753-1:2009: 表 3
这些数值适用于未安装的轴承在测量载荷为零的条件下
缺陷频率
可以使用 SKF 轴承计算器提供的工具计算缺陷频率
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