News
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Differences Between Rolling Bearings and Sliding Bearings in Electric Motors
Rolling bearings and sliding bearings are the two primary types of support used in electric motors; each has distinct advantages in terms of operating principles, performance characteristics, and applications. I. Fundamental Differences in Operating Principles Rolling bearings support loa...Read More -
What is the function of a flameproof junction box?
I. Preventing the Propagation of Explosions This is the most fundamental and critical function of a flameproof junction box. In environments where flammable or explosive gases and dusts are present—such as petrochemical plants, underground coal mines, and gas stations—electrical equipment may ge...Read More -
New National Major Design Changes for Electric Motors Coming in 2026: Standard GB/T 755-2025 Targets VFD “Electric Shock” Hazards
As variable frequency drives become commonplace in industrial settings, electric motors are facing a new “invisible killer”—high-frequency pulse currents. In response to this challenge, the State Administration for Market Regulation officially released the new version of the m...Read More -
The Bearing Philosophy of High-Voltage Motors: Why One End Must Be Fixed and the Other Free
At the heart of industrial production, high-voltage motors serve as the critical power source driving large fans, compressors, and crushers. For these “hearts” of the operation, stability and reliability are paramount. Observant individuals might notice an intriguing design ...Read More -
Understanding the Limitations of Using Standard Grid-Frequency Motors with Variable Frequency Drives
In the world of industrial motor applications, Variable Frequency Drives (VFDs) have become essential tools for energy savings and process control. A common question we encounter, especially from overseas buyers, is: “Can I use a standard IE4 grid-frequency motor with a VFD?” The shor...Read More -
How Altitude Affects Industrial Motor Output Power
Altitude is a critical environmental factor that directly influences the performance and rated output of three phase electric motors. Most standard motors are designed to operate at full capacity at altitudes up to 1,000 meters above sea level. As elevation increases beyond this threshold, air de...Read More -
Causes of Low Motor Efficiency: Key Loss Factors Analysis for Industrial Motors
High-efficiency motors are closely tied to global energy conservation and emission reduction policies. IE3 energy efficiency has become the basic threshold for motors in national key projects, municipal tenders and especially exports to European countries. However, motor manufacturers face great ...Read More -
High-Efficiency Foundation + Flexible Capability: The Complementary Logic of Permanent Magnet and Variable Frequency Motors
In practical applications, many people confuse permanent magnet motors with variable frequency motors. In fact, they are motor categories from different dimensions with completely distinct core definitions, and are not an either-or alternative. Permanent magnet motors are classified by excitatio...Read More -
Why is the surface roughness of the explosion-proof surface important for explosion-proof motors?
For explosion-proof motors, the surface roughness of the explosion-proof surface is crucial because it directly determines the motor’s explosion-proof performance—that is, its ability to prevent internal explosions from propagating to the outside. If the roughness is unacceptable, even if ...Read More -
Why is the oil level so important when using forced lubrication for sliding bearings, and what is the ideal state?
1. Why is the oil level crucial? Low oil level (most dangerous situation): Oil film breakage: The oil ring (or oil slinger) cannot be immersed in the oil deep enough, resulting in insufficient oil carryover. Without the separation of the lubricating oil film between the bearing and the shaft, dr...Read More -
IP55 Dust and Water Resistance Test: Verifying Motor Shell Protection Capability for Harsh Environments
Feb. 9, 2026 – With the wide application of motors in harsh industrial and outdoor environments, the dust and water resistance of motor shells has become a key indicator affecting equipment reliability and service life. Recently, a professional IP55-grade shell dust and water resista...Read More -
The Silent Guardian: How Explosion-Proof Motors Power Critical Methanol Injection Systems in the Oil & Gas Industry
Deep within remote natural gas processing facilities or on offshore platforms, a silent battle against a formidable foe—gas hydrate formation—is waged daily. The weapon of choice: Methanol Injection Pumps. These precision, high-pressure metering pumps are the frontline defense, injecting inhibito...Read More