NTN Bearing rigidity

Bearing stiffness, bearing-generating unit is the size of the force required to deform. Rolling elastic deformation is small, in most machines do not have to be considered, but in some machines, such as machine tool spindle, bearing stiffness is an important factor to be used generally cylindrical and tapered roller Tapered bearing  Because these two types of bearings under load when the rolling element and raceway is point contact, less rigid.
In addition, various types of NTN Bearing preload can also achieve the purpose of increasing the support rigidity. Such as angular contact ball bearings and tapered roller bearings, to prevent the shaft vibration, increased support rigidity, often in advance when installing certain axial force applied to pressed against each other. Particularly pointed out here: the amount of preload is not too large. Is too large, it causes the NTN bearing friction increases, increased temperature, affect the bearing service life.Control KOYO bearing temperatures. For some direct impact on the unit load and secure an important motor bearings, such as the blower motor, a fan motors, fan motors, etc., modify bearing temperature setpoint, the temperature alarm value by the 90 ℃ down to 70 ℃, so that in the event of abnormal temperature rises, there is enough time to take measures to ensure crew safety. In hot weather, commissioning temporary fan, reducing bearing temperature to ensure a sufficient degree of lubricating oil, to improve the lubrication conditions.