XR678052交叉圆锥滚子轴承
XR678052交叉圆锥滚子轴承
D：203.2mm（8英寸）
D：279.4mm（11英寸）
T：31.75mm（1.25英寸）
R：1.5
Cr：51.3 KN
Ca：61.6 KN
更多XR系列交叉圆锥滚子轴承型号
XR496051
JXR637050
JXR652050
XR678052
JXR699050
XR766051
XR820060
XR855053
XR882055
XR889058
XR897051
交叉圆锥滚子轴承是交叉圆柱滚子轴承的一种变形，其滚动体为圆锥滚子，相邻滚子成90度交叉排列，圆锥滚子的滚动面的延长线交点要位于轴承的回转线上，该轴承的特点是滚动体在运动过程中作纯滚动，避免相对滑动，因此极限转速远高于交叉圆柱滚子轴承，但摩擦力矩低于交叉圆柱滚子轴承。
轴承特点：
1、高精度：精度可达到P4、P2级；
2、高刚性：该系列轴承均带有预载荷；
3、高承载：可承受轴向载荷、径向载荷、倾覆载荷
4、高转速：滚动体在运动过程中作纯滚动，因此极限转速高于交叉圆柱
滚子轴承。
5、低摩擦：摩擦力矩远低于交叉圆柱滚子轴承。
适用范围：被广泛应用于高速立车、高精度工作台、、立式镗床、磨床主轴等等。
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