【轴承厂家】滚动轴承向心滚针和保持架组件滚针轴承K505520 K505530 K505718 K505820
LWB--精度 Precision
龙威滚针保持架组件公差如表1，当两个以上的轴承并联在同一轴上使用时，滚针必需属于同一分组值。保持架宽度公差Bc为-0.2/-0.55mm。
The dimensional tolerances of needle retainer are listed in Table 1. When bearings of more than two types are used in parallel on a same shaft, the needles must belong to the sub group with same value. The retainer width tolerance Bc is -0.2/-0.55mm.
表1滚针直径公差Table 1 needle diameter tolerance 单位 unit：um
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精度等级Precision grade
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滚针直径 Needle diameter tolerance
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G2
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0~-2 -2~-4 -4~-6
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G3
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0~-3 -3~-6 -6~-9
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LWB--配合 Combination
龙威滚针保持架的径向间隙，取决于内外滚道及滚针的加工精度。表2为依据不同的使用条件推荐的配合。
The radical gap of needle retainer assembly depends on the machined precision of the inner and outer trays and the needles. The table 2 shows the combination recommend as per the different operational conditions.
LWB-- 根据G6加工外壳时推荐轴公差
Table2 the recommended shaft tolerance of the casing when machined as per G6
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轴公称直径Nominal shaft
使用条件 Operational conditions
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轴的推荐公差 Recommend shaft tolerance
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≤80
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＞80
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高转速
High speed，high precision
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j5
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h5
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一般使用条件
General operational condition
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h5
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g5
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高温或装配误差大
High temperature or great mounting tolerance
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g6
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f6
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