CAN INCREASE THE RPM OF GEAR MOTOR?

Why rewind? 22kW motors are relatively inexpensive, so simply substitute the 4-pole motor with a 2-pole one. With the new motor comes the manufacturer's warranty, and the old one becomes a serviceable spare.

The load torque needs to be considered in all this. If the existing motor is running close to maximum output, and the load torque rises with speed, then a 22kW 2-pole motor won't be enough. In which case it's back to basics and recalculate, and reselect the motor/gearbox combination. There are very few real-world loads where the torque falls with increasing speed!

If the motor is a larger size as a result of the recalculation, then the starter needs to be considered.

• Is the internal cabling large enough?
• Is diversity in the equipment containing the starter capable of allowing the larger load?
• Are the fuses the correct size?
• Is the overload the correct size and setting?
• Is the cable supplying the motor the correct size for the larger load?
• Etc.

the gears typically have a torque limit, so what will the torque be?