Is it possible to use a 50 Hz motor to a 60 Hz power supply without using any frequency converter?
Yes nowadays motor manufacturers are making motors that work on both 50 Hz and 60 Hz. Read the name plate of motor it indicates that.
Most, but not all 50 Hz motors will work on the same voltage at 60 Hz and vice versa. I live in NZ where the supply is 230V 50 Hz. When I went to the Chatham Islands where the supply is 230V 60 Hz., my electric shaver ran faster.
There are several common types of AC motors, which behave differently when connected to a source with a different frequency than designed for. A synchronous motor will just run slower. An induction motor will have some coils out of phase and will get hot. If the load is light then it may be OK but as the load approaches the rating it will overheat. So the type of motor and the load must be known for me to give you an exact answer.
It is possible to use if the load is light. Only thing that changes is speed of motor, instead of 1500, it will be 1800. Hence mechanical friction is slightly more, but a good motor must be able to withstand it. However if you load it up to say70% then that should be compensated
You can probably use a 50Hz motor on a 60Hz supply without concern for overheating or other damage. However, you should be aware that the motor will rotate at 6/5 its normal speed. That may or may not be an issue depending on what the motor is driving.
