I am really confused. I see online Chinese spindles of 2.2Kw and they are really small and around 10Kg in weight. I have 3 phase squirrel cage motor that has 3000 RPM and it is only 0.75KW but it weights 15KG. now can someone explain me how those Chinese spindles are rated at 2.2KW and bigger motors are rated at only 0.75KW. Also I was not able to locate ANY squirrel cage motor like this http://image.made-in-china.com/2f0j0...tion-Motor.jpg that is rated at 2.2KW but in size similar to the Chinese spindles. I have found 2.2KW squirrel cage motor but it was 4 times bigger then the Chinese spindles. PLEASE SOMEONE CLEAR THIS RATINGS TO ME.

Thank you.