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深沟球轴承游隙的选择
Release time:2022-05-18
Author:
Shandong Ruiding Bearing LTD
深沟球轴承游隙的选择:用户在购买深沟球轴承时一般只会告知在什么型号、等级,很少会对深沟球轴承的游隙提出要求,业务人员必须问清深沟球轴承的使用条件、其中深沟球轴承的转速、温度、配合公差都直接关系到深沟球轴承游隙的选择。一般在3500转/分以下转速的电机大多采用CM游隙,如高温高速电机则要求采用相对较大的游隙。
深沟球轴承游隙在装配后会因为内孔的涨大及外圆的缩小而导致减少,游隙的减少量=过盈量×60%(深沟球轴承室是铝的除外)。比如深沟球轴承装配前游隙是0.01mm,装配时过盈量为0.01mm,则深沟球轴承装配后的游隙为0.004mm。在理论上深沟球轴承在零游隙时噪音和寿命都达到较佳的状态,但在实际运转中考虑到温升等问题,深沟球轴承在装配后游隙为0.002mm-0.004mm较好。
油脂的选择:油脂的选择一般是根据深沟球轴承的转速、耐温情况、噪音要求及起动力矩等方面进行选择,要求业务人员对各种油脂的性能很了解。
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深沟球轴承密封型式的选择
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