DC Motor for Water Pump,spa chair motor 1.Frequency:50Hz- ... requirements.A.Shaft diameter:4.5mm,6.35mm,7.14mm,8mm,9.525mm,10mm,12mmB.Diameters: at your requirements2.Performance: Pls ... .One-stop motor production4.CE,CCC,ISO 9001:2008 Approved DC Motor for Water Pump,spa chair motor