The installation of self-aligning roller bearings for vibrating screens needs to be combined with their heavy-duty and impact resistant working conditions, and operated according to standardized procedures to ensure the bearing's self-aligning performance and service life. The specific installation techniques are as follows:
⚠️ Preparation Tips for Installation
Before installation, open the original packaging of the bearing to avoid premature failure of the rust proof layer. At the same time, clean the mating surfaces of the shaft and bearing seat to remove burrs and oil residue.
Clean the bearings with clean kerosene, and thoroughly remove the rust inhibitor with filtered special flushing oil under high-speed or precision working conditions. Immediately wipe dry after cleaning, and do not leave them exposed for a long time to prevent rusting.
.Measure the fit dimensions of the shaft neck and bearing seat in advance to confirm that the interference fit meets the requirements of the vibrating screen under heavy load conditions, in order to avoid early wear caused by improper fit.
.🔩 Installation Techniques for Cylindrical Bore Bearings
Small Bearings: Use a press machine with a soft steel installation sleeve to evenly apply force to the inner ring end face, and smoothly press and install until the inner ring fully fits the shaft shoulder. Do not directly tap the outer ring.
Medium and large bearings: Using the hot installation method, the bearing is placed in a dedicated heating oil tank and heated to 80-100 ℃. After uniform heating, it is quickly fitted onto the shaft. During the natural cooling process, the inner ring is gently pushed to ensure complete fit with the shaft shoulder. It is forbidden to directly heat the bearing with an open flame.
. When installing the separated structure, first install the inner and outer rings into the shaft and bearing seat respectively, and then precisely close the two to avoid forcefully pressing and damaging the raceway surface.📐 Installation Techniques for Conical Bore Bearings
The oil pressure installation method is preferred. The bearing is directly installed on the conical shaft neck, or installed on the optical axis with a tightening sleeve and a retraction sleeve, to meet the installation requirements of large self-aligning roller bearings for vibrating screens.
. During the installation process, continuously measure the reduction in radial clearance. First, confirm the initial clearance before installation, then tighten the locking nut and retest the clearance until it is compressed to the recommended range for the vibrating screen operating conditions. After installation, confirm that the rollers on the no-load side are fully aligned with the inner raceway, and finally tighten the locking washer teeth or locking clamping plate to prevent loosening and displacement during operation.✅ After installation, check the skills by manually turning the shaft to confirm that the bearing rotates without any jamming or abnormal noise, and runs smoothly and steadily throughout the entire process.
Add lubricating grease suitable for the impact condition of the vibrating screen, with the filling amount controlled at 1/3~1/2 of the internal cavity of the bearing. Overfilling can cause overheating during operation.
.Conduct a 30 minute no-load test run, monitor the operating temperature and vibration values of the bearings, and confirm that there are no abnormalities before officially putting them into operation with materials.
.