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The negative influence of the groove curvature of deep groove ball bearings on the motor

Source: China Bearing Network Time: 2014-10-20

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The depth of the groove of the deep groove ball bearing has a negative influence on the motor. The curvature coefficient of the groove directly affects the service life of the bearing and the load carrying capacity. But together, the bearing load of the bearing will be reduced. Generally speaking, regarding the deep groove ball bearing; A slightly larger curvature than the above data is beneficial to the oscillation and noise of the bearing.
If the data is slightly smaller, the opposite effect will be made on the oscillation noise of the bearing. The reason is because the groove curvature of the bearing ring is directly related to the contact surface of the steel ball and the ferrule. When the groove curvature is larger The contact surface is better than that of the city.
The groove curvature, that is, the radius of the groove radius R has an effect on the operation of the bearing. The China Luo axis research institute takes a central value of NSK according to NSK, which is 0. 515; the outer ring takes about 0. 525 round; It makes sense. According to the research of NSK in Japan, the groove curvature of the inner ring is between 0. 512 and 520. The diameter of the groove of the outer ring is 0. 520-0. It is appropriate.
It seems that if a ball rolls over a flat plate; the resistance is small (increasing an arc infinitely; the interception of a certain section of the hero can be regarded as a straight line). And rolling in the same arc; the reason for the large resistance is the same; That is why the use of sliding bearings does not have a large scale of use of rolling bearings.

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