The Equivalent Dynamic Load Calculator is a practical engineering tool designed to calculate the equivalent dynamic load acting on bearings under combined radial and axial loading conditions. By entering key parameters such as radial load, axial load, and applicable load factors, users can quickly determine an equivalent load for bearing life and performance analysis. The Equivalent Dynamic Load Calculator helps engineers, designers, and technicians simplify bearing calculations, evaluate operating loads, select suitable bearings, and improve the reliability of rotating machinery. It is suitable for gearboxes, motors, pumps, machine tools, automotive systems, and other mechanical applications. Whether you are designing a new bearing system or checking an existing installation, this calculator provides a fast and convenient way to support bearing load analysis and mechanical design.

Equivalent Dynamic Load Calculator – Rolling Bearings (ISO 281)
Input Parameters
Bearing Parameters
Operating Conditions
Load Factors (X & Y)
Auto: X = 1.00 (Fa/Fr <= e)
Auto: Y = 0.00 (Fa/Fr <= e)
Calculation Results
Equivalent Dynamic Load (P)
– kN
Axial / Radial Ratio (Fa/Fr)
–
Rating Life (L10)
– x10^6 rev
Operating Life (L10h)
– hours
Life Exponent (p)
–
Boundary Ratio (e)
–