this kind of electric motor are made in NEMA Standard, it  is with  light weight, better proformance, high effiency, they are widely used.

Specifications:
1) Frame sizes: 48 /56
2) Rated power: 1/12 hp-3hp3 )  voltrage: 110-120v,200-240v
4) Frequency: 50Hz, 60Hz
5) Protection class: IP24
6) Insulation class: F
7) Materials: steel
8) EFF: EFF2
9) Poles: 2
10) speed:3410 RPM
11) Cooling method: ODP (open drip proof)
12) Mounting types: IMB3
13) Operating mode: S1
14) Ambient temperature: -15°C < θ< 40°C
15) The altitude should be lower than 1,000m above the sea level
16) Relative humidity: not higher than 90%
17) Special motors can be designed according to customers' requirements
18) Export markets: Europe, North America, the Middle East, Africa, Southeast Asia,
East Asia, South America