In order to ensure the long service life of Timken self-aligning ball bearing, which can not meet the general installation and adjustment requirements, the following measures should be taken:
Self-aligning ball bearings are grouped according to the size of their interference fit surface, and Timken self-aligning ball bearings are sequentially arranged according to their clearance in each group.
Group the corresponding shaft or seat hole diameters in the same way. The self-aligning ball bearing group with large interference fit surface size is matched with the shaft group or seat hole group with large diameter,while the Timken self-aligning ball bearing group with small size is matched with the corresponding group with small diameter. In each matched corresponding group, the self-aligning ball bearing with large clearance shall take a tighter fit, and the Timken self-aligning ball bearing with small clearance shall take a looser fit.
As a result of this matching, in the machines installed in the same batch, the fitting interference of self-aligning ball bearing is relatively consistent, which is neither loose nor too tight, and the clearance is relatively uniform, so as to ensure that the prestress of self-aligning ball bearing after installation is appropriate, and avoid creep, ring expansion crack, impact, vibration or heating caused by improper clearance Failure of abnormal Timken self-aligning ball bearings such as clutching.
The coaxiality of the journal and seat hole at both ends of the support and the perpendicularity with the end face of the support shall be strictly guaranteed to prevent the generation of additional load.
If possible, the mechanical components acting on the load other than Timken self-aligning ball bearing should be slightly away from the easily damaged Timken self-aligning ball bearing at the end. At the same time, the shaft and rotating parts system should operate as smoothly as possible.