SIZING AND SELECTION GEAR COUPLINGS BZ

Symbols

TKN
     Rated torque of the coupling (Nm)
TAN
     Rated torque of the drive (Nm)
SA     Shock or load factor
P     Drive power (kW)

n

     Rotational speed (rqm)

 

 

   

 

According to torque

1. Calculate the drive torque at speed TAN.


2. Determine the required torque rating of the coupling TKN based on the drive torque TAN multiplied by the shock or load factor SA (see page 17)

Sample calculation:

Coupling between an electric motor (P=1000 kW at n=980 rpm) and a transmission, driving a screw conveyor (SA=1.6).

Rating Chart

Maximum torque, speed and misalignment are related and can not exist at the same time.
Evaluation of T/TKN and n/nmax Compare plotted values for combined limits.