Adjusting the axial clearance For the installation axial clearance of the tapered roller bearing, the adjustment nut on the journal, the adjusting washer and the thread in the bearing seat hole can be used, or the preload spring can be used to adjust. The size of the axial clearance is related to the arrangement of the bearing installation, the distance between the bearings, and the materials of the shaft and the bearing seat, and can be determined according to the working conditions.

For tapered roller bearings with high loads and high speeds, when adjusting the clearance, the impact of temperature rise on the axial clearance must be considered, and the reduction in clearance caused by the temperature rise must be estimated. In other words, the axial clearance Adjust it appropriately.

For bearings with low rotation speed and vibration, they should be installed without clearance or installed with preload. Its purpose is to make the rollers and raceways of the tapered roller bearing have good contact, distribute the load evenly, and prevent the rollers and raceways from being damaged by vibration and impact. After adjustment, check the axial clearance with a dial indicator.