Glossary

Bearing lifespan calculation refers to the process of estimating the expected operating life of a rolling bearing under specific operating conditions and loads.

• Question: What types of bearing lifespan calculations exist in the context of rolling bearings?
  • Answer: In the context of rolling bearings, there are various approaches to bearing lifespan calculation, including the nominal life according to ISO standards, calculation of the L10 life (the time until 90% of bearings reach a certain number of revolutions), and the use of life models based on load and operating parameters.

• Question: What does the static load rating indicate in bearing lifespan calculation?
  • Answer: The static load rating of a rolling bearing indicates the maximum load that the bearing can support statically (without rotation) without causing permanent material damage. It is used to evaluate the load capacity of a bearing in applications where the loads do not rotate or change slowly.

• Question: What does the dynamic load rating indicate in bearing lifespan calculation?
  • Answer: The dynamic load rating of rolling bearings is a measure of the load a bearing can carry under motion without fatigue damage. It is crucial for calculating the theoretical life of the bearing under dynamic conditions. This load rating takes into account factors such as bearing geometry, material, and type of load, but it is only an approximate value since real operating conditions may vary.

• Question: How do operating conditions and environmental variables influence the bearing lifespan calculation?
  • Answer: Operating conditions such as speed, load, lubrication, and temperature have a significant impact on the life of rolling bearings. Environmental variables, including dirt, moisture, and vibration levels, can also affect the bearing life.

• Question: Why is accurate bearing lifespan calculation important?
  • Answer: Accurate bearing lifespan calculation allows engineers and users to predict the reliable performance of bearings under various operating conditions and select the right bearings for specific applications. This contributes to improving machine performance, safety, and maintenance costs.