Does High Gearbox Temperature Always Indicate a Quality Problem?

Key Takeaway:Check the load factor first, Lubrication, Concentricity, Installation Environment & Acceleration/Deceleration Time, Then investigate possible internal faults.

Check the Load First

Operating Near or above Rated Load for Long Periods, Significantly increases gear and bearing losses.

Then Check the Installation

Poor Motor-to-Gearbox Concentricity, Mounting face deformation or excessive external radial force can cause abnormal heating.

Check Dynamic Operating Conditions

Acceleration/Deceleration Time Too Short, Frequent starts and stops increase instantaneous torque and thermal load.

When to Suspect an Internal Fault?

After Ruling Out Operating & Installation Problems, If abnormal temperature rise continues with noise, Vibration or Lubrication Problems, Inspect Internal Components Further.

How to Apply This Information to Selection?

Do not make a final selection from a single parameter. Review the motor model, Load, Target Output Speed, Torque, Inertia, Check acceleration/deceleration time and mounting interfaces together, Then select the series and model.