How to prevent temperature-induced bearing failures?

Temperature-induced bearing failures are a common problem, especially in food production facilities, in equipment exposed to high temperatures. With the right precautions, both equipment life can be extended and production downtime can be reduced. Here's a detailed guide:

1. Main Causes of Temperature-Induced Bearing Failures

1. Incorrect grease or oil use
   • Standard grease breaks down at high temperatures → increased friction and wear.
2. Overheating
   • Bearings continuously exposed to high temperatures in ovens, sterilization, or cooking lines.
3. Insufficient lubrication
   • If grease is not applied regularly and in the correct amount, heat increases due to metal-to-metal contact.
4. Dirt and contamination
   • Water, steam, or chemical cleaning residues cause grease degradation and bearing heating.
5. Incorrect mounting or alignment
   • If the bearing is incorrectly mounted axially or radially, friction increases and temperature rises.

2. Preventive Measures

A. Correct Grease / Oil Selection

• High-Temperature Food Grade Grease: Resistant up to 200–250°C
• NSF H1 Certified: Safe if there is a risk of food contact
• Pay Attention to Viscosity: Suitable consistency for bearing and temperature conditions

B. Regular Maintenance and Monitoring

• Bearing temperature and noise should be monitored with thermometers or sensors
• Maintenance intervals should be planned according to high-temperature conditions
• Grease quantity and change time should be checked

C. Equipment Design and Installation

• Positioning bearings and housings in areas with good heat dissipation
• Proper alignment and axial mounting
• If necessary, use cooling systems or heat protectors

D. Cleaning and Hygiene

• Protection of bearing and housing areas with grease after CIP systems
• Preventing water, chemical, or food residues from contacting the bearing

E. Operational Measures

• Monitoring temperature limits on production control panels
• Avoiding overloads
• Ensuring bearings are not exposed to temperature stress during production line shutdowns

You can contact us for technical support regarding solutions suitable for your business.