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The force required to produce permanent deformation of balls in a ball bearing is the amount of force needed to cause permanent deformation in the bearing balls when the bearing is under static load conditions. This is an important parameter in bearing design and selection.
The calculator uses the formula:
Where:
Explanation: The formula calculates the force required to produce permanent deformation by distributing the static load across all balls in the bearing with a safety factor of 5.
Details: Calculating the force required for permanent deformation is crucial for bearing design, material selection, and ensuring the bearing can withstand expected loads without permanent damage.
Tips: Enter static load on bearing in Newtons and the number of balls in the bearing. All values must be valid (static load > 0, number of balls ≥ 1).
Q1: What is static load on a bearing?
A: Static load on a bearing is the load acting on the bearing when it is not rotating or is in a stationary condition.
Q2: Why is the factor 5 used in the formula?
A: The factor 5 is a safety factor that accounts for various uncertainties and ensures the calculated force provides a margin of safety against permanent deformation.
Q3: What constitutes permanent deformation in ball bearings?
A: Permanent deformation refers to plastic deformation of the bearing balls or races that remains after the load is removed, affecting bearing performance and lifespan.
Q4: How does the number of balls affect the required force?
A: With more balls in the bearing, the load is distributed across more contact points, reducing the force on each individual ball and increasing the total force required for permanent deformation.
Q5: When should this calculation be used?
A: This calculation is important during bearing selection and design phases to ensure the bearing can withstand expected static loads without permanent damage.