Bearing and self aligning ball bearing bearing space should be in accordance with the request of high-precision bearings, according to the request of high temperature bearings, so when considering the coordination of open space, we need to consider the following two points.
(1) the changes are changed at high temperature and hardness at normal temperature.
(2) changes in the force system and shape caused by the centrifugal force. In a word, under the condition of high temperature, it is difficult to maintain the precision and work function of self aligning ball bearing from the choice of Concorde harmonic space.
To ensure the bearing device after rolling deformation is small, the amount of intervention work can not be too large, the expansion of the centrifugal force and high temperature, normal pressure or offset surface. Or cooperation surface relaxation, then annoyance quantity, it is necessary to consider these two factors under the premise of decision. It is probably not effective to jam the bearing at a steady speed.
The results contradict the hypothesis is too big, just ring lubrication and hydraulic lubrication, lubrication method, the plan may reach 3 million Ma Kejing bearing. When considering the self aligning ball bearing open space, we should not only consider the above elements, but also consider the influence of the axial thermal elongation of the open space, and request the best space for the bearing under the working condition, namely the working temperature, the empty space is precise, the outer ring groove center is in the opposite position. As the sliding bearing strives to reduce and internal conflict, it is best not to use the relative displacement of the inner and outer ring and the adjustment method of the axial ground of the ball bearing.
Considering the annoyance of tapered roller bearing space, and paying attention to soft data, simple deformation and high temperature characteristics, many times and high temperatures caused by temperature change are necessary for permanent deformation.
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