Peak Output Torque Margin

Where SF = Shock Factor
 

Nominal Output Torque Margin

Actual Duty Cycle, ED

Maximum Output Torque Curve Rating

• Gearbox manufacturer rated maximum output torque vs input speed

Nominal Output Torque Rating

• Gearbox manufacturer rated nominal output torque vs input speed

Nominal Output Torque at Mean Input Speed

  Type 0: Dwell, Exp=3, T2N>T2n if ED>EDcont

• If the actual duty cycle ED_Actual >= ED_{ContOperation}, then the calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 1: No dwell, Exp=3, T2N>T2n always

• The calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 2: No dwell, Exp=10/3, T2N>T2n always

• The calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 3: Dwell, Exp=3, T2N>T2n always

• The calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 4: Dwell, Exp=10/3, T2N>T2n always

• The calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 5: No dwell, Exp=3, T2N>T2n if ED>EDcont

• If the actual duty cycle ED_Actual >= ED_{ContOperation}, then the calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 6: Dwell, Exp=10/3, T2N>T2n if ED>EDcont

• If the actual duty cycle ED_Actual >= ED_{ContOperation}, then the calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

 
  Type 7: No dwell, Exp=10/3, T2N>T2n if ED>EDcont

• If the actual duty cycle ED_Actual >= ED_{ContOperation}, then the calculated nominal output torque and mean input speed must fall within the manufacturer’s specified nominal rating.

• Nominal output torque and mean input speed are calculated as follows:

Move Profiles of Output Torque vs Input Speed

• Clearly illustrates when a design is near or exceeds rated maximum output torque and/or input speed
   

Inertia Mismatch