Analysis the major risk factors for common model selection of the miniature bearing

Analysis the major risk factors for common model selection of the miniature bearing some miniature bearing axial load: mainly bear axial load of bearing, generally for the thrust bearing, its nominal contact corner a0 & gt; 45°。 Thrust bearing and thrust angular contact ball bearing according to the different structures can take one or two directions at the same time of axial force. When bear particularly high force optimization with thrust cylindrical roller bearings, thrust spherical roller bearings. Miniature bearing radial load, mainly bear radial load bearing for centripetal bearing. This type of bearing the nominal contact Angle of a0 & lt; =45°。 Size of the same roller bearing is larger than the ball bearing can bear radial load. N and NU type cylindrical roller bearing can bear radial load, other types of centripetal bearing can bear radial load, can also carry axial load. Thrust spherical roller bearings and one-way thrust angular contact ball bearings can carry axial load and radial load at the same time, other thrust bearing can only carry axial load. Miniature bearing miniature bearing speed: single bearing friction especially low, therefore can achieve the highest speed. This kind of bearing has only bear radial load of deep groove ball bearing and angular contact ball bearings can withstand the combined load. Improve the dimensional precision, rotating precision of the bearing and cooperate with the precision of the parts, the lubrication cooling way, using a special form of cage can improve bearing allows speed. Low noise in a small motor operation, office equipment and household appliances and other general requirements to's running noise. Miniature bearing friction: except by heating and cooling, internal friction of bearing temperature also plays a role of a big decision. Low friction bearings are: bear radial load of deep groove ball bearings, miniature single row angular contact ball bearings and cylindrical roller bearings with cage. Contact sealed bearings, full of cylindrical roller bearings, thrust roller bearing can produce greater friction. Miniature bearing accuracy: in most cases the application of the general size and rotating precision of the rolling bearing is enough. Bearing need higher precision when demand a higher level.