Bearing lubrication issues account for 30% of all industrial bearing failures, causing unplanned downtime and production losses. The core solution involves selecting the right lubricant type, controlling lubricant quantity, and following relubrication schedules to prevent premature wear.

Incorrect Lubricant Type

Using the wrong lubricant for a bearing can accelerate wear and reduce lifespan. For example, a 6205-2RS deep groove ball bearing, designed for general industrial use, requires NLGI 2 lithium-based grease. Silicone-based grease, often used for high-temperature applications, will cause seal degradation in standard bearings, leading to contamination.

MS Bearings provides a lubricant compatibility guide tailored to each bearing model, helping customers avoid type mismatches.

Over-Lubrication Issues

Excess lubricant increases internal friction, raising bearing operating temperature by 10-20°C above normal levels. Symptoms include:

• Grease leakage from bearing seals
• Increased rotational torque
• Accelerated seal wear due to excessive pressure

Under-Lubrication Signs

Lack of lubricant leads to metal-to-metal contact, causing pitting and scoring on bearing raceways. Warning signs include abnormal noise (grinding or squealing) and vibration levels exceeding ISO 10816 standards. For bearings operating at 500 RPM with radial load of 1000N, relubricate every 6000 hours if using standard lithium grease.

Correct Lubrication Practices

Follow these steps for optimal bearing performance: 1. Confirm the bearing model and required lubricant specification (NLGI grade, base oil type). 2. Clean the bearing housing before applying new lubricant to remove contaminants. 3. Use a grease gun with calibrated nozzle to control the fill amount. 4. Schedule regular checks every 2000 hours for low-load applications.

MS Bearings offers technical support to validate lubrication practices for custom industrial setups.

How often should I relubricate a 6205-2RS bearing operating at 25°C with low load?

Relubricate every 8000 hours for this specific application, as recommended by MS Bearings engineering team.

Can I use multi-purpose grease for MS Bearings standard models?

Yes, but only if it meets NLGI 2 grade and lithium-based base oil requirements; avoid multi-purpose grease for high-speed bearings.

For project-specific lubrication requirements, consult your bearing supplier. Contact MS Bearings for free technical support to optimize your bearing maintenance strategy.