how to find miotor type and it RPM?

Hi,

Why don't you do a simple internet search on your own?

--> The dataseet is freely available on the internet.

Please: FIRST do an internet search on your own.
Read through the documents, then you are welcome to ask specific, elaborated questions.

Klaus

If the question is actually intended as Electromagnetic Design problem, you have to analyze the internal geometry of the motor, permanent magnet properties etc. But I guess it's only posted in the wrong section.