ZW57 Series Brushless DC Motor/BLDC Motor Summery ZW Series DC Brushless Motor adopts 4/8 polar rotator design. It contains:ZW57,ZW60,ZW70,ZW80 and ZW110 etc. They can work in 0.1Nm-6Nm continuous torque and the NdFeB Magnet makes Peak torque 2 times above. Model ExplanationZW 57 BL 50- 2 40 ZW indcates DC Brushless Motor.57 indcates Seat No, the same with Flange dimensions.BL is just a Number made by our company. It has no practical meaning.50 indicates motor body length.2 indicates the 24V driving voltage. In the same way 3 indicates 36V,4 indicates 48V and 31 indicates 310 V and so on..40 indicates 4000 RPM rated speed. In the same way 30 indicates 3000RPM,50 indicates 5000RPM,60 indicates6000RPM and so on.3.Mounting Model In general, this series motor adopts Flange mounting. 4.Usage 1.No more than 4000m above sea level. 2.Ambient temperature:-25°C 40°C. 3.Relative humidity ≤95%(at +25°C). 4.The followed temperature rise: no more than 75K(when 1000m above sea level). 5.Product Features 1.low noise 2.small size 3.constant torque 4.Ambient Temperature:-25-+60°C 5.Ambient Related Humidity:20%-90% 6.Storage Related Humidity:20%-85% 7.Winding Type:Y connection 8.Hall Effect Angle:120 degree electrical angle 9.Insulation Resistance:100 MΩ 10. Insulation Grade:B class 6.Technical Data ZW57BL550-230: 60W(rated power),24V(rated voltage),3000RPM(rated speed),0.18Nm(rated torque)52mm(body length),0.55Kg(weight) 8mm(shaft dia.). ZW57BL70-225: 100W(rated power),24V(rated voltage),2500RPM(rated speed), 4.0Nm(rated torque),72mm(body length),0.8Kg(weight) 8mm(shaft dia.). ZW57BL70-336: 150W(rated power),36V(rated voltage),3600RPM(rated speed), 4.0Nm(rated torque),72mm(body length),0.8Kg(weight) 8mm(shaft dia.). ZW57BL90-210: 60W(rated power),24V(rated voltage),1000RPM(rated speed), 0.6Nm(rated torque),92mm(body length),1.1Kg(weight) 8mm(shaft dia.). ZW57BL90-230: 180W(rated power),24V(rated voltage),1000RPM(rated speed), 0.6Nm(rated torque),92mm(body length),1.1Kg(weight) 8mm(shaft dia.). ZW60BL80-230: 80W(rated power),24(rated voltage),3000RPM(rated speed), 0.25Nm(rated torque),80mm(body length),0.9kg(weight)8mm (shaft dia.). ZW60BL100-215: 80W(rated power),24V(rated voltage),1500RPM(rated speed), 0.5Nm(rated torque),100mm(body length), 1.25kg(weight)8mm (shaft dia.) ZW60BL100-230: 150W(rated power),24V(rated voltage),3000RPM(rated speed), 0.5Nm(rated torque),100mm(body length), 1.25kg(weight)8mm (shaft dia.) ZW60BL120-430: 250W(rated power),48V(rated voltage),3000RPM(rated speed), 0.75Nm(rated torque),120mm(body length), 1.6kg(weight)14mm (shaft dia.) ZW60BL120-3130: 250W(rated power),310V(rated voltage),3000RPM(rated speed),0.75Nm(rated torque),120mm(body length), 1.6kg(weight)14mm (shaft dia.) ZW80BL110-445: 400W(rated power),48V(rated voltage),4500RPM(rated speed), 0.8N.m(rated torque),110mm(body length), 1.7kg(weight)14(shaft dia.). ZW80BL110-3145: 550W(rated power),310V(rated voltage),4500RPM(rated speed), 1.2 N.m (rated torque),110mm(body length), 1.7kg(weight)14 (shaft dia.). ZW80BL145-330: 350W(rated power),36V(rated voltage),3000RPM(rated speed), 1.2N.m (rated torque),145mm(body length), 2.1kg(weight)14 (shaft dia.). ZW80BL145-3130: 750W(rated power),310V(rated voltage),3000RPM(rated speed), 1.8 N.m (rated torque),145mm(body length), 3.0kg(weight)14(shaft dia.). ZW80BL145-3145: 750W(rated power),310V(rated voltage),4500RPM(rated speed), 1.8 N.m (rated torque),145mm(body length), 3.0kg(weight)14 (shaft dia.). ZW80BL165-3130: 750W(rated power),310V(rated voltage),3000RPM(rated speed), 2.5 N.m (rated torque),165mm(body length), 3.5kg(weight)14 (shaft dia.). ZW80BL165-3145:1000W(rated power),310V(rated voltage),4500RPM(rated speed), 2.5 N.m (rated torque),165mm(body length), 3.5kg(weight)14 (shaft dia.). ZW80BL165-3160: 550W(rated power),310V(rated voltage),1500RPM(rated speed), 3.5N.m (rated torque),165mm(body length), 3.5kg(weight)14 (shaft dia.). ZW110BL140-3120: 750W(rated power),310V(rated voltage),2000RPM(rated speed), 3.0Nm(rated torque),140mm(body length), 4.5kg(weight)19 (shaft dia.) ZW110BL200-3125: 1200W(rated power),310V(rated voltage),2000RPM(rated speed), 6.0Nm(rated torque),200mm(body length), 7.0kg(weight)19 (shaft dia.)