Bearing Grease Quantity & Re-greasing Frequency Calculator.
Optimize lubrication, minimize grease waste, and prevent premature bearing failures.
Enter your bearing dimensions & speed data
Select bearing operating conditions
Vibration: ips = inches/sec (0.2 inches/ sec = 5mm/sec)
Grease Quantity: - grams
Re-Lubrication Frequency: - hours (- days)
Understanding these results:
- The correct grease is required: The grease quantity and frequency assume a suitable grease is being used. The wrong grease will not protect your bearings.
- Frequency of re-lubrication: The frequency result may suggest if switching to automated lubrication is a considerable and cost-effective option.
Cautionary Notes:
Usage of the calculator: Use this calculator only if OEM guidelines aren’t available. Otherwise, if available, refer to equipment manuals for specific guidelines on lubricants and lubrication frequencies.
Correct Grease & Viscosity: Choose the right grease type and viscosity. The most suitable grease for the application depends on the thickener and the oil in the grease:
- Calcium thickener: Suitable for high-loads
- Aluminum thickener: Suitable for wet environments
- Polyurea: High temperatures (above 160°C)
- PTFE: High temperatures (above 200°C)
- High viscosity: Suitable for high-loads
- Low viscosity: Suitable for high-speeds
Any many more
Condition-Based Maintenance: Adapt re-greasing frequency based on the environment and bearing health.
Quality Lubricants: Use only high-quality lubricants to prevent bearing damage. Speciality greases are developed to ensure the prevention of premature failure of bearings in different operating conditions.
Prevent Contamination: Protect grease from contamination during storage and application. With contaminated grease, you essentially have a grinding paste.
Training: Ensure personnel understand proper lubrication practices. Lubrication is a skill and training is available.
Enter your bearing dimensions & speed data
Select bearing operating conditions
Vibration: ips = inches/sec (0.2 inches/ sec = 5mm/sec)
Grease Quantity: – grams
Re-Lubrication Frequency: – hours (– days)
Bearing Lubrication 101
Importance of Proper Lubrication
Proper bearing lubrication is critical for equipment longevity and reliability. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and forms a barrier against contaminants.
Common Greasing Mistakes
Under-greasing
Leads to metal-to-metal contact, causing accelerated wear and premature failure.
Over-greasing
Causes churning, increased operating temperatures, and seal damage.
Incompatible Greases
Mixing incompatible thickeners can cause significant degradation of lubrication properties.
Contamination
Dirt and water turn lubricating grease into an abrasive paste that damages bearings.
Best Practices for Bearing Lubrication
- Clean fittings before applying grease
- Apply grease when machinery is running (when safe)
- Allow space for grease expansion (only fill bearing 30-50%)
- Maintain accurate records of relubrication events
- Use high-quality, properly stored grease
- Train maintenance personnel on proper procedures
Thickener Compatibility Chart
Mixing incompatible greases can cause severe issues. Refer to this compatibility chart:
Compatible combinations: Lithium & Lithium Complex, Calcium & Lithium
Incompatible combinations: Polyurea & Clay, Clay & Lithium Complex, Calcium Complex & Aluminum Complex
For a complete compatibility chart, please download our full guide.
Cost Savings Analysis
The True Cost of Improper Lubrication
Research shows that up to 40% of all bearing failures are directly related to improper lubrication practices. The financial impact extends far beyond the cost of a replacement bearing.
Cost Components of Bearing Failure:
- Replacement parts cost ($200-$2,000+ per bearing)
- Labor costs for replacement (4-16 hours)
- Production downtime ($1,000-$10,000+ per hour)
- Energy waste from increased friction before failure
- Collateral damage to other components
ROI of Proper Lubrication
Implementing a proper lubrication program typically yields a 400% return on investment. Our calculator helps you quantify these benefits for your specific application.
Extended Bearing Life
Proper lubrication can extend bearing life by 2-3 times.
Reduced Energy Consumption
Proper lubrication can reduce energy consumption by 3-5%.
Decreased Maintenance Costs
Reduction in emergency repairs and scheduled maintenance.