The observed value represents the torque required to start the machine. This method is normally limited to obtaining starting torque or peak torque values, as it is unsafe and difficult to attempt to continuously rotate a torque wrench. Whether AC or DC drives are used the wrench method is one of experimenting with an oversize drive at reduced power levels, recording the experimental readings, and subsequently bench-testing the drive to determine the torque that was being produced at the recorded readings. The rated frequency, if applicable, of the associated voltage will affect overall output speed. The performance of the gearmotor can be effected with the use of dual frequency AC coils.
Numerous applications involve caustic, dusty, humid or extreme temperature environments.
Please consider all conditions within the specific environment. This specification is critical in determining the endurance of the gearmotor as it relates to the total product and application. Also important is the total number of cycles when considering gearmotor design. Various brakes are available as options. Consider all loading and inertia criteria of the application in both forward and reverse directions.