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向心滚针轴承和保持架组件K253216 K253320 K253324 K253418滚针轴承

向心滚针轴承和保持架组件K253216 K253320 K253324 K253418滚针轴承

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龙威向心滚针轴承和保持架组件K253216 K253320 K253324 K253418滚针轴承

LWB轴承代号 结构特点

K/KS 单列/单列剖分式

KK/KKS 双列/双列剖分式

KZK 连杆曲柄销用

KBK 连杆活塞销用

KNL 长圆柱滚子和保持组件

DF向心滚针和保持架组件有单列K型与双列K......ZW型,而且在整体保持架无法安装时,可使用特殊的剖分型滚针和保持架组件,其轴承型号后置加“D”,即K......D,K......ZWD

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-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.

1滚针直径公差Table 1 needle diameter tolerance 单位 unitum

精度等级Precision grade

滚针直径 Needle diameter tolerance

G2

0~-2          -2~-4          -4~-6

G3

0~-3          -3~-6          -6~-9

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.

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