Troubleshooting bearing faults on shot blasting machines requires targeted solutions corresponding to specific root causes. Common causes include improper installation, insufficient lubrication, fatigue wear or external impact damage.
Fault Diagnosis & Initial Handling
When bearing abnormalities are detected, first inspect the operating status of the shot blasting machine. If abnormal vibration, strange noise or excessive temperature rise (over 60°C) occurs around the bearing housing, shut down the machine immediately for inspection and analysis.Initial inspection items: Check bearing mounting integrity, normal oil supply of the lubrication system, and wear or damage to the bearing housing.
Targeted Solutions
Standardized Installation & Routine Maintenance
Carry out bearing installation strictly in accordance with specifications; inspect and retighten fastening bolts periodically. Ensure precise fitting tolerances between bearings and shafts during assembly to prevent uneven load distribution.
Optimized Lubrication Conditions
Adopt high-pressure automatic lubrication systems instead of traditional manual greasing to save labor and improve operational safety. Select water-resistant, high-temperature grease (e.g. sulfonate polymer grease 1615EN). Check lubrication status regularly to eliminate dry friction.
Temperature Control & Structural Optimization
Install forced cooling devices such as axial fans to lower ambient temperature around bearings. Add ventilation holes to bearing housings for the automatic lubrication circuit.
Bearing Replacement & Dynamic Balancing
Bearings suffering fatigue, severe wear or cracking must be replaced promptly. After replacement, conduct dynamic balance testing on the blasting wheel impeller. Replace turbine blades in matched pairs if required to eliminate mechanical resonance.
Preventive Maintenance Guidelines
Implement a regular maintenance schedule focusing on bearing wear inspection, lubrication system performance monitoring and external vibration source elimination. Maintain balanced machine load and avoid overloading to extend bearing service life.
