It's a auto swing AC synchronous motor 220v-240v 4W. This is a high quality motor with metal body. This type motor generally use in egg turner , microwave turntable oven, cooler, fan and tower fan swing.  

• Screw Hole Diameter -4.5mm
• Shaft Size-7 x 15mm (D*L)
• Body Size-49 x 21mm (D*H)
• Rated Power-4W 
• Rated speed-5-6 RPM
• Rated Voltage-220-240V
• Manner of working-CCW/CW