How to calculate bearing load ?

 Calculating bearing load involves considering both radial and axial loads acting on the bearing. Here's how you can calculate each type of load:

1. Radial Load:

   • Determine the forces acting perpendicular to the shaft's axis. These forces are typically vertical or horizontal loads.
   • Sum up all the vertical and horizontal forces that the bearing will need to support.
   • Calculate the resultant force, which is the vector sum of all the applied radial forces.
   • Ensure that the resultant force does not exceed the radial load capacity of the selected bearing. If it does, you may need to choose a bearing with a higher radial load capacity.

2. Axial Load:

   • Determine the forces acting parallel to the shaft's axis. These forces are typically thrust or pulling forces.
   • Sum up all the axial forces that the bearing will need to support.
   • Calculate the resultant axial force, which is the vector sum of all the applied axial forces.
   • Ensure that the resultant axial force does not exceed the axial load capacity of the selected bearing. If it does, you may need to choose a bearing with a higher axial load capacity.

3. Combined Load:

   • If your application involves both radial and axial loads, calculate the combined load acting on the bearing.
   • Use vector addition to find the resultant load vector, considering both radial and axial components.
   • Ensure that the resultant load does not exceed the combined radial and axial load capacity of the selected bearing. If it does, you may need to choose a bearing with a higher combined load capacity.

4. Dynamic and Static Load Ratings:

   • Consult the bearing manufacturer's catalog or datasheet to find the dynamic and static load ratings for the specific bearing type and size you are considering.
   • Compare the calculated loads with the dynamic and static load ratings of the bearing. Ensure that the calculated loads are within the rated capacities to avoid premature bearing failure.

By accurately calculating the radial, axial, or combined loads acting on the bearing and comparing them with the bearing's load ratings, you can select a bearing that can safely support the loads in your application.