Need reliable import bearing function

Motor spindle must cope with temperature changes its parts influence. Therefore, import bearings and housings induced by temperature between the corresponding vertical change must be floating through import bearings to compensate. As a simple radial import bearings, a single high precision cylindrical roller bearing is the ideal floating import bearings. The outer ring no collar. Inner circle and the roller assembly can refer to adjust the position their freedom. Because the relative displacement is import bearings in the rolling element and internal rotation between the outer produced, imported bearing must have a floating function.

However, the traditional cylindrical roller bearing used in motor imported in spindle on two key defects: first of all, they can't meet the required load; Second, because the temperature changes caused by the radial clearance changes, rolling contact area will withstand high pressure. Therefore, many motor spindle bearing on the position of the floating all equipped with Angle contact ball bearing imports. But usually, realize the function of floating import bearings need with a target group-exact marketing and linear ball float import bearings complex surrounding structure.

Radial flexible system

Import bearings internal radial clearance due to the heat of the bearing and reduce or cooling. The resulting import bearing radial deformation increase the contact pressure, this increase the contact area rolling friction. The heating roller increased import bearings internal preloading, and further enhance the friction. If the resulting additional heat cannot be dispelled, radial deformation will cause import bearings failure.

It is for this reason that the new hot pressing cylindrical roller bearing import installed a can through the radial clearance changes of the deformation of the elastic outer compensation. Standard size outer lane has two round slot, and two slots of the radial between diameter also smaller. Temperature change, the center of the outer area can get radial extensions. The resulting contact force, foreign circle pressure than to use the standard cylindrical roller bearing rise more slowly. Even in 40 K under the temperature difference between the contact pressure was significantly lower than the 1500 Mpa fatigue strength of the limit. As friction is low, the pressure of lubricant is smaller.

For the high speed of application

New hot pressing cylindrical roller bearing can be installed a guide, friction between the optimization of the maintains a PEEK. The design of the hot pressing cylindrical roller bearing has imported and introduced in 2007, the import of high-speed cylindrical roller bearing the same optimization internal configuration. They can achieve the same outstanding speed. In grease, speed can bring roller than maintains a cylindrical roller bearing the imported high 60%.The optimization of the distribution of grease

PEEK maintains a only one side of the outer race provides guidance. It ensures that the most suitable grease the supply. Extra grease the faster speed export import bearings. The distribution of grease need time less, because flow around by the risk of losing the grease was also reduced. Once the grease injection, the temperature is lower levels, distribute less