Rolamentosare the heart of every machine. From automotive systems to industrial motors, bearing reliability determines the efficiency of equipment. However, even the best-quality bearings can fail prematurely if not properly maintained.
To help customers maximize performance and lifespan,AINEs DFLadheres to and recommends the Three Golden Rules of Bearing Performance:Cleanliness, Lubrication, and Proper Operation.
1. Keep Bearings Clean
Contamination is one of the main causes of bearing damage. Tiny dust particles, dirt, or moisture can cause wear and corrosion, ultimately leading to premature bearing failure. Once contaminants enter the bearing, they scratch the raceways, reducing rolling efficiency.

Best Practices:
Always store bearings in their original packaging until ready for installation.
Keep the work area clean and dry.
Avoid touching the bearing surface with bare hands.
Use appropriate sealing solutions to protect bearings from external contaminants.
At DFL NSAR, every bearing is carefully packaged and sealed to ensure the highest level of cleanliness during storage and transportation. We understand that protection begins before installation.
2. Ensure Proper Lubrication
Lubrication is essential for reducing friction, protecting surfaces, and extending bearing life. Without the correct amount and type of lubricant, metal-to-metal contact between the rolling elements and raceways will occur, leading to excessive wear and heat buildup.
Best Practices:
Use the recommended grease or oil for your specific bearing type and operating conditions.
Avoid overlubrication, which can increase temperature and pressure.
Relubricate bearings at appropriate intervals, especially in high-speed or heavily loaded applications.
DFL NSAR offers bearings pre-lubricated with high-quality grease for easier installation and more consistent performance. Our technical team can also recommend the optimal lubricant based on your machine’s operating environment, temperature range, and speed requirements.

3. Proper Handling and Installation
Even the most precise bearings can fail if improperly installed. Improper handling or installation can cause misalignment of bearing rings and rolling elements, internal stress, or physical damage.
Best Practices:
Use appropriate tools, such as bearing heaters, pullers, and presses.
Apply force only to the rings being installed (inner rings for shaft fit and outer rings for housing fit). Never hammer or impact bearings into place.
Check alignment and shaft/housing tolerances before installation.
At DFL NSAR, we not only supply bearings, but also provide technical guidance and OEM installation support to ensure your bearings perform perfectly from day one. Our engineering team can help customers achieve a precise fit and long-term stability.

Follow the rules for lasting results

By following these three golden rules—keeping bearings clean, ensuring proper lubrication, and handling with care—you can significantly extend bearing life, reduce downtime, and improve overall equipment performance.
DFL NSAR has overseas warehouses and offices in the United States, as well as strong OEM production capabilities, providing high-quality bearings, customized solutions, and expert technical support to customers worldwide. Whether you require standard products or private label collaboration, our team is ready to help you build reliable, high-performance machinery.

Your Trusted Global Bearing Partner

DFL NSAR is committed to excellence in every bearing we produce. From raw materials to final inspection, each product is manufactured under strict quality control to ensure precision, durability, and consistency. We welcome global distributors, machinery manufacturers and industrial users to cooperate with DFL NSAR to obtain competitive prices, fast delivery andprofessional OEM support.