Spherical roller bearings are widely used in heavy-duty industrial applications due to their ability to handle high radial loads and moderate axial loads, even under misalignment. However, like any mechanical component, they can experience issues over time. Knowing how to troubleshoot common problems can help extend the service life of your bearings and prevent costly downtime.

Here are some of the most frequent issues encountered with spherical roller bearings, along with practical ways to identify and resolve them.

1. Excessive Bearing Temperature

Symptoms:

Abnormally high operating temperature

Discoloration of the bearing or housing

Lubricant degradation

Possible Causes:

Over-lubrication or insufficient lubrication

Misalignment

Contamination

Excessive load

Troubleshooting Tips:

Check the lubrication type and quantity. Using the correct grease or oil is essential.

Inspect for shaft or housing misalignment.

Ensure proper installation torque.

Use temperature monitoring tools to detect abnormal patterns early.

2. Unusual Noise or Vibration

Symptoms:

Grinding, clicking, or knocking noises

Increased vibration levels

Possible Causes:

Internal damage (e.g., spalling or flaking on rollers or raceways)

Ingress of dirt or moisture

Loose fit between bearing and shaft/housing

Troubleshooting Tips:

Conduct vibration analysis to pinpoint the source.

Inspect seals and bearing surfaces for signs of wear or corrosion.

Replace damaged bearings immediately to avoid further damage to surrounding components.

3. Premature Bearing Failure

Symptoms:

Shorter-than-expected bearing life

Frequent replacements

Downtime increases

Possible Causes:

Improper installation

Using incorrect bearing type for the application

Poor lubrication practices

Shaft deflection or housing deformation

Troubleshooting Tips:

Always follow manufacturer installation guidelines.

Ensure you're using the correct spherical roller bearing for the load and speed conditions.

Use automated lubrication systems if possible for consistent performance.

Inspect the shaft and housing for wear or irregularities.

4. Corrosion and Contamination

Symptoms:

Rust on the bearing surfaces

Discoloration of lubricant

Pitting or scoring

Possible Causes:

Moisture ingress

Chemical exposure

Inadequate sealing

Troubleshooting Tips:

Use high-quality seals and regularly inspect them for integrity.

Store bearings in a clean, dry environment.

Avoid high-pressure cleaning near bearing housings.

5. Misalignment

Symptoms:

Uneven wear on rollers or raceways

Heat generation

Noise during operation

Possible Causes:

Shaft deflection

Improper mounting

Deformation of housing

Troubleshooting Tips:

Use self-aligning spherical roller bearings to accommodate slight misalignments.

Check alignment during installation using dial indicators or laser alignment tools.

Ensure the shaft and housing meet dimensional tolerances.

Final Thoughts

Regular inspection and preventive maintenance are key to ensuring the longevity and reliability of your spherical roller bearings. When troubleshooting, always start with the basics: lubrication, alignment, and load conditions. Keeping proper records of bearing performance and failures can also help identify recurring issues and guide future improvements.

At our company, we offer a wide selection of high-quality spherical roller bearings and expert technical support. Contact us today to find the best solution for your application.