Railway
Power BearingAdvanced bearing technology
In the field of railroad transportation, which demands the highest level of safety and reliability, high-quality bearings play an irreplaceable role. From high-speed trains to freight locomotives, from track systems to signaling equipment, advanced bearing technology provides key solutions for the railroad industry.
Power BearingBearing technology: the core solution to promote efficient and safe operation in the railroad industry
Problem: Early wear and lubrication failure of wheel axle bearings led to frequent replacement, affecting operational efficiency.
Solution:
Adopt special alloy steel and new heat treatment process to improve the fatigue strength of bearings.
Design of multi-lip sealing structure to effectively block the intrusion of moisture and contaminants.
Developed special long-lasting grease to maintain lubrication performance under high speed and high temperature conditions.
Problem: Some freight trains had frequent bearing overheating alarms on long downhill sections, posing a safety hazard.
Solution:
Optimize the internal raceway geometry design to improve load distribution.
Adoption of high thermal conductivity materials to enhance the heat dissipation ability.
Development of temperature-sensitive lubrication system, high-temperature automatic supplemental lubrication.
Problem: In extremely cold weather, conventional bearing grease solidifies, resulting in high starting resistance and increased wear.
Solution:
Development of cold-resistant synthetic grease, -50 ℃ still maintain lubrication performance.
Reduce the risk of dry friction by using special surface treatment technology.
Problem: the subway newly purchased vehicles running noise is too large, exceeding the environmental requirements, mainly from the bearing vibration.
Solution:
Application of ultra-finishing technology.
Design vibration and noise reduction structure, built-in damping elements to absorb vibration energy.
Optimize the preload control to eliminate the impact noise caused by the clearance.
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