21BF-NUVODISC MCLENNAN | Alldatasheet
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21BF nuvoDiscTM 8 pole Ø21mm 4 W Electrical Data ** K
1 Nominal Voltage U N 5 Volt
2 Optimization Direction - n.a. -
3 No-Load Speed n 0 3,900 rpm
4 Typical No-Load Current I 0 28.0 mA 5 Max Continuous Mechanical Power (@25° C) P max 4.0 W 6 Max Continuous Current I e max 0.3 A 7 Max Continuous Torque M e max 2.7 (0.39) mNm (oz-in) 8 Back EMF Constant K E 0.89 V/1000 rpm 9 Torque Constant k M 8.5 mNm/A 10 Motor Regulation R/k 2 784.0 10 3 /Nms 11 Motor Regulation k/R ½ 1.1 (0.16) mNm/W ½ (oz-in/W ½ ) 12 Internal Resistance - phase to phase R I 56.30 ohms 13 Line to Line Resistance at Connectors R L 56.30 ohms 14 Inductance Phase to Phase L 1.22 mH 15 Mechanical Time Constant t m 141.2 ms General Data
17 Maximum Motor Speed n max 25000 rpm
18 Ambient Working Temperature Range - -30 to +80 (-22 to +176) °C ( °F )
19 Ambient Storage Temperature Range - -40 to +80 (-40 to +176) °C ( °F )
20 Ball Bearings Preload - 2.70 N 21 Axial Static Force w/o Shaft Support (max) - 27.00 N
22 Maximum Winding Temperature - 125 (257) °C ( °F )
23 Thermal Resistance R th1/ R th2 12.00 °C / W 24 Thermal Time Constant t w 200.00 s 25 Weight - 10 (0.36) g (oz) 26 Rotor Inertia J 1.80 g.cm 2
27 Hall Sensor Electrical Phasing - NA Electrical °
21BF 3C - ** Wire Description Common connection center point of Y w inding sensorless Dimensions in mm