Yes, sealed bearings can still be used after long-term storage—if they have been stored under proper conditions and pass inspection. Key criteria to evaluate usability include seal integrity, lubricant condition, smooth rotation, and absence of corrosion or contamination. Most sealed bearings can be stored safely for 3 to 5 years,

Chinese ceramic bearing manufacturers are globally recognized for their advanced technical strengths, including expertise in high-performance ceramic materials, precision engineering, and rigorous quality control. With achievements in innovation and a strong market presence, top manufacturers like ZWZ, LYC, and VKUKEN lead the industry.
VKUKEN stands out with its commitment

Over the past few decades, China’s bearing industry has risen from a follower to a global leader, challenging and even replacing traditional giants like SKF, NSK, and Timken in various sectors. Leading manufacturers such as ZWZ, LYC, and HRB have evolved from state-owned enterprises into cutting-edge industry pioneers, supplying high-precision

China remains the top choice for bearing procurement with 2,997 manufacturers, a mature supply chain, and advanced production capabilities. It leads in deep groove ball bearings, tapered roller bearings, and precision bearings, supplying industries like automotive, wind energy, and heavy machinery. China’s bearing exports have shown a growth trend of

To correctly install a cross roller bearing, begin by cleaning the bearing, shaft, and housing thoroughly to remove contaminants. If necessary, heat the bearing to expand it slightly, making installation easier. Align the bearing carefully with the shaft and housing, then press it into place using a hydraulic press or

A crossed roller bearing is a type of bearing where cylindrical rollers are arranged in a crisscross pattern, allowing it to support both radial and axial loads simultaneously. These bearings are known for their compact design, high load capacity, precision, and low friction. Made from materials like steel, ceramics, and

Cylindrical roller bearings are vital to a wide range of industrial applications, and their correct installation is essential to ensure smooth operation and maximize their lifespan. By understanding the structural design, working principle, and installation methods, as well as taking necessary precautions, you can ensure that the installation process is

Angular contact ball bearings and deep groove ball bearings cannot always replace each other due to their distinct structural designs and performance characteristics. Angular contact ball bearings are ideal for handling both radial and axial loads, making them suitable for high-speed, high-precision applications. In contrast, deep groove ball bearings are

The service life of sealed bearings is influenced by several key factors, including operating temperature, load and pressure, speed, lubrication quality, contamination, and environmental conditions. High temperatures, excessive loads, and poor lubrication can cause premature wear, while contamination can lead to bearing failure. Preventive measures such as maintaining optimal temperatures,

Proper lubrication is essential for maintaining motor bearings, as it reduces friction, prevents overheating, and protects against wear and corrosion. The key to effective lubrication is selecting the right type of lubricating oil, such as mineral oils, synthetic oils, greases, or solid lubricants, based on motor specifications and operating conditions.