Golden Electric Motor 48V 2000W

Golden Electric Motor 48V 2000W 1.Design: Brushless DC Hub Motor 2.Volt & Power: 48V-144V, 350W-10000W 3.Speed: 30km/h-130km/h 4.Torque: 70N.m-350N.m 5.Efficiency: 85%-93% 6.Size: 10inch-16inch 7. Two halls (one for spare) ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ Production？Pictures？&？Details Product？Test？Report？&？CAD？Drawing？ From 1st test？report,？we？could？find？expected？max？rpm？is？1236.3,？max？torque？is more than 135.1N.m,？which？performance？well？on？EFF(Reach？88.6%).？ From 2nd test？report,？we？could？find？expected？max？rpm？is？1006.2,？max？torque？is 162.7 N.m,？which？performance？well？on？EFF(Reach？93.5%).？ For？the？speed there？is？two？formulas,Speed(km/h)=0.9*RPM(r/min)*2r？π？(m)*60？？？ Power=？Torque*RPM/9.55 So？under？the？same？power,？the？faster？the？RPM/speed？is,？the？smaller？the？torque. For？hills？climbing: high？torque and low？RPM/speed？motor？maybe？suitable. P.S.:？Above？speed？is？calculate？due？to？lead-acid？battery？theoretically,？if？it's？lithium？battery,？the？speed？maybe？5kph？more.？？？ In？practice,？the？speed？will change？according？to？weight？of？loading？&？vehicle,？ road？situation,？tyre？models？and？wind？resistance.？？？？ About Facotry？&？Application Taizhou？Quanshun？Motor？Co.,？Ltd.？focus？on？highpower？electric？motor？for？ more？than？10？years,？our？products？include:？high？power？&？quality？E-bike/E-scooter /E-spoke？motor/E-car？hub/in-wheel？motor？(From？350W？to？10000W,？48V-144V,？ 30km/h-130km/h);？Which？is？specialized？in？research,development？and？production of？electric？scooter/bicycle？motor. Currently？we？are？honored？to？be？one？of？electric？motor？supplier？of？Terra？Motors？ &？Lightning？Motorcycles？CORP.,？etc. ？ All？of？our？products？comply？with？international？quality？standards？and？are？greatly？ appreciated？in？a？variety？of？different？markets？through？the？world.？If？you？are？ interested？in？any？of？our？products？or？would？like？to？discuss？a？custom？order, please？feel？free？to？contact？with？us. Choose？QS,？Choose？Quality？&？Service! To？Customize？a？suitable？motor In？order？to？customized？a motor？for？you,？could？you？pls.？inform？us？below？points: 1.？What's？your？application？for,？electric？scooter,？tricycle？or？car(model)? 2.？Size,？Voltage,？Wattage,？Speed？Requirements？and？how？about？the？torque? 3.？Loading？weight？requirement？and？your？vehicle？weight?？ Within？above？information,？I？could recommend a suitable motor and quote？accordingly. Thank？you？for？your？understanding？in？advance. For？more？information,？please？contact？with？us？by？email？or？Trademessenger？freely.？ We're？glad？at？your？service.？:？) Advantage For？Quality 1.？Focus？on？high？power？&？quality？E-bike/E-scooter/E-spoke？motor/E-car？hub/in-wheel？motor？(From？350W？to 10000W,？48V-144V,？30km/h-130km/h);？ And main？parameter？could？be？customized,？ e.g.？Size,？PRM,？Torque？and？dimension？of？axle？between？forks. 2.？Choose？good？raw？materials？from？the？beginning？to？the？end,？long-working？life？(3-5？years),？ two？halls(one for spare, in case the inconvenience of maintainance in abroad; And？We？are？honored？to？be？one？of？electric？motor？supplier？of？Terra？Motors？ &？Lightning？Motorcycles？CORP., etc. ？ For？Service 1.Replying inquiry within 12 working hours; 2. Well-trained engineers and staff members provide you with professional solutions; 3. Could also offer a suitable kits, such as controller, throttle, disc brake, etc., please refer to below link. ？ ？ http://qsmotor.en.made-in-china.com/product-group/RqLQAUSvvrhp/Electric-Kits-catalog-1.html ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？ ？？ For？Price Offer a reasonable and competitve price. For Produce Time？ ？ ？ 8-12 working days after receiving payment for sampels & mass production. We sincerely hope to set？up？a？long？cooperation？with all the friends throughout world,？aim at assisting customers to build green high performance electric vehicles.？ Awaiting for your comments, thank you!