Thrust Ball Bearings A high degree of grease
Thrust ball bearing characteristics
1. There are two types of one-way, two-way
2. In order to allow installation errors, whether it is one-way or two-way, you can choose spherical self-aligning spherical seat cushion or spherical seat type.
3. High-quality steel - the use of the bearing life can extend the maximum 80% of the ultra-clean steel
4. High Grease Technology - NSK's lubricant technology expands grease life and improves bearing performance
5. High-grade steel ball - quiet and smooth at high speed
6. With the ferrule in the option, an installation error can be tolerated.
Thrust ball bearings are generally better, but the bearings are smaller than thrust roller bearings. Thrust ball bearings are designed to withstand thrust loads during high-speed operation, consisting of roller grooms and roller rollers. Thrust ball bearings are divided into flat base pad and thrust ball bearing hheey spherical cushion type. In addition, the bearing can withstand axial loads, but can not withstand radial loads. Thrust roller bearings can carry axial and radial joint loads with large thrust roller bearings, but the radial load does not exceed 55% of the axial load. Compared with other thrust roller bearings, the bearing has a low coefficient of friction, high speed, adjustable core performance. Thrust roller bearings and thrust roller bearings low-speed bearings, thrust bearing speed slightly higher than the thrust roller bearings. Isolated thrust cylindrical roller bearings are a bearing that can only withstand axial loads in both unidirectional and slight shocks, limiting the axial (or shell) to axial displacement in one direction and thus as a one-way axial positioning. But its carrying capacity is much greater than the thrust ball bearings. Since the linear velocity is not the same at both ends of the roller, the rollers cause the rollers on the roller ring to inevitably slip, so that the bearing speed is a low-thrust ball bearing, usually only for low-speed applications.
The verticality of the centerline of the thrust ball bearing shaft
When you install the thrust ball bearings and check the verticality of the shaft and shaft centerline. The method is a micrometer fixed to the surface of the housing, touches the bearing raceway bearing the watch dial indicator pointer, the pointer is deflected, the shaft turning the head and the shaft centerline is not vertical. The shell hole is deeper and it can also be used to test microns long. When the thrust bearing is properly installed, the seat automatically adjusts the rolling of the rolling body to ensure that the roller is located on the raceway. If installed, the bearing not only can not run properly, and with the surface will wear badly. As the shaft and housing washers and the difference is not obvious, the assembly should be careful to avoid mistakes.
In addition, the thrust bearing ring and bearing hole should be left 0.2-0.5 mm between the gap between the installation error caused by the inaccurate, when the center bearing rings, run-time deviation, this gap can ensure its automatic adjustment, Avoid friction and ensure that it works properly. Otherwise, the bearing caused serious damage. When you install the thrust bearing and check the verticality of the shaft and shaft centerline. The method is a micrometer fixed to the surface of the housing, touches the bearing raceway bearing the watch dial indicator pointer, the pointer is deflected, the shaft turning the head and the shaft centerline is not vertical. The shell hole is deeper and it is also used for elongated micrometer inspection.