双列角接触球轴承都有哪些结构分类?

2025-03-15 14:28:34
推荐回答(1个)
回答(1):

双列角接触球轴承的设计基本上与单列角接触球轴承相同,但只占用更小的轴向空间。双列角接触球轴承可以承受径向负荷和作用在两个方向的轴向负荷,它能限制轴或外壳双向轴向位移,接触角为30度。可以提供刚性较高的轴承配置,并能承受倾覆力矩。双列角接触球轴承能承受较大的径向负荷为主的径向和轴向联合负荷和力矩负荷,限制轴的两方面的轴向位移。主要用于限制轴和外壳双向轴向位移的部件中。
双列角接触球轴承结构分类:
1、A型外径小于或等于90mm轴承的标准设计。无装球缺口,因此能承受相等的双向轴向载荷。采用轻型玻璃纤维增强尼龙66保持架,轴承温升很小。
2、B型外径大于90mm轴承的标准设计。一侧有装球缺口,配备钢板冲压保持架或黄铜实体保持架。
3、C型属加强型结构,一侧带装球缺口,可以装更多的钢球,因此承载能力较高。
4、两面带防尘盖型和两面带密封圈型A型设计和C型设计的双列角接触球轴承都可以两侧带防尘盖(非接触式)或密封圈(接触式)。密封轴承的内部都填有防锈锂基润滑脂,运行温度一般在-30~+110℃。在使用期间不需再润滑,安装前不应加热,也不应清洗。

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