Analysis of the inspection items after the bearing works

Analysis of Inspection Items After Bearing Work

Source: China Bearing Network | Time: 2014-05-04

After completing the installation of the bearing system, it's essential to perform a thorough inspection to ensure everything is functioning properly. For smaller equipment, you can manually rotate the unit to check for smooth operation and any signs of resistance. This process helps identify issues such as foreign objects, scratches, or indentations that may affect performance. Additionally, check for unstable torque caused by improper clearance, misalignment, or seal conflicts. If no abnormalities are detected, the system can be safely powered on. For larger machinery, manual rotation isn't feasible. Instead, after a no-load start, the machine should be allowed to idle. During this time, observe for vibrations, unusual noises, or any contact between moving parts. Once all checks confirm normal operation, the system can proceed to full power. During power operation, start with low-speed no-load conditions and gradually increase to the required load. Monitor key factors such as abnormal sounds, changes in bearing temperature, oil leakage, or discoloration of lubricants. If any issues arise, stop the machine immediately and inspect the bearing if necessary. Bearing temperature is typically estimated based on the external housing temperature. However, for more accurate readings, use a thermometer at the oil inlet to measure the outer ring’s temperature directly. The temperature should rise gradually during initial operation and stabilize after 1–2 hours. A sudden spike in temperature could indicate problems such as excessive lubricant, too small clearance, poor alignment, or seal interference. High-speed applications also require careful attention to bearing layout and lubrication selection. Unusual noises can be identified using a stethoscope. Listen for metallic sounds, irregular noises, or other abnormal sounds that might suggest issues like poor surface finish, misaligned shafts or housings, damaged bearings, or contamination from foreign particles.
Recommended for You: - Understanding Bearing Load Distribution and Traction Motor Bearing Failures - INA Thin-Walled Bearings in Critical Inventory Management - Spherical Plain Bearings and Tapered Roller Bearings M86649/10 This article is linked from http:// Please cite China Bearing Network at http:// Previous: Analysis of Ferrule Cracking Shortcomings Next: Sliding Bearing Skill Analysis for Launching Machines (1)

Electric Mosquito Swatter

Electric mosquito swatter is a kind of small household appliance products, mainly used to kill mosquitoes, ‌ flies, ‌ moths and other insects. ‌ It through the electronic high voltage technology, the use of 1850V high voltage to effectively destroy these pests, has the advantages of practical, convenient, no chemical pollution, safety and health, so it is widely welcomed, become the summer best-selling small household appliances products. The electric mosquito bat is usually composed of three layers of metal mesh, the outer metal mesh and the middle layer are not directly connected, and maintain a certain distance. When the switch is pressed, the direct current in the battery passes through the oscillation circuit and the boost circuit, eventually reaching a high voltage above 2000 volts. This design allows the mosquito to be waved through the electrostatic field and electrical grid discharge to destroy the insect, without causing harm to the human body. ‌
The main advantages of electric mosquito swatting include:
‌Efficient pest control: can kill a variety of insects in a short time, including mosquitoes, flies and moths.
Safety and health: the use of high voltage electricity instead of chemical agents, to avoid chemical pollution, more environmental protection and safety.
‌Portable and convenient: compact size, easy to carry and use, suitable for home and outdoor use.
No chemical pollution: will not produce harmful chemicals, more friendly to the environment and human body.
The following points should be noted when using an electric mosquito swatter:
‌Avoid using ‌ in humid environment, so as not to affect its high pressure effect.
‌Keep the electric mosquito bat dry ‌ to avoid short circuit or damage caused by moisture.
‌Avoid using ‌ in flammable and explosive environments to prevent accidents.
‌Children should use ‌ under adult supervision to prevent accidental handling or risk of electric shock.
In short, with its high efficiency, safety and environmental protection characteristics, the electric mosquito has become an ideal choice for summer pest control.

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