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When designing bearing factor to consider

by:Waxing     2020-05-24
In order to make the bearing in the machine effect to full play, in addition to choose the type of match system and type, and stop the right combination structure design. This needle roller bearing is the same, the needle roller bearing combination design contains the content of the what? The combination of the needle roller bearing structure design contains a shafting bearing end; Bearings and related parts of collaboration; Smooth and sealing of bearing; Progress and stiffness of the bearing system, and so on, this is all demand reach guidelines, or needle roller bearing will not be able to normal work. Besides, there are fixed way about needle roller bearing, if be fixed on both ends, each bearing a under the direction of the bearing force, then allow the shaft operations with a few thermal contraction. In a formal device of needle roller bearing, there should be zero. 25mm- 0. 4 mm axial gap, can through the gasket or screw regulate in detail. But this kind of fixed way will constrain the needle roller bearing two-way move, so ordinary is suitable for use in some operating temperature changes little axis, use the time to consider thermal elongation, and leave the compensation gap between bearing cover and the outer end face. If the needle roller bearing only stop at the end of the bidirectional fixed, the other end of the words stick to swim, can ensure that bearing flexibility of cent can swim free. The fixed end of the needle roller bearing is mainly composed of single bearing or bearing set hand carry two-way axial force, in order to avoid loose fall off, winding bearing inner scope and to a fixed axis.
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