1) NSK bearing design parameters: the number of rolling elements, including NSK Bearings, ferrule wall thickness and clearance and so on.
2) NSK bearing parts manufacturing errors include: NSK bearing raceways and rolling elements surface roughness, roundness crossing pattern and degree of difference. Large number of experimental studies have shown that waviness of the bearing vibration dominates, while the surface roughness and roundness relatively small.
3) NSK Bearings working conditions: NSK bearings during operation, load, speed, lubrication three aspects of bearing vibration greatest impact.
4) NSK Bearings installation parameters: NSK bearings and shaft and bearing housing, the installation of other factors also favor the bearing vibration impact.