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V012024 • © 2024 Portescap. Specifications subject to change without notice.Dimensions in mmBrushless DC Slotless MotorsElectrical Data Symbol 40ECP44 8 XX Unit 7 101 Nominal Voltage UN 18 18 Volt2 Optimization Direction - Symmetrical Symmetrical -3 No Load Speed n0 18'300 26'500 rpm4 Typical No Load Current I0 770 1'410 mA5 Max. Continuous Mechanical Power (@25°C) Pmax 150 150 W6 Max. Continuous Current Ie max 13.2 18.85 A7 Max. Continuous Torque Me max 120 (17) 120 (17) mNm (oz-in)8 Back EMF Constant kE 0.95 0.67 V/1000 rpm9 Torque Constant kM 9.11 (1.29) 6.38 (0.9) mNm/A10 Motor Regulation R/k2 0.63 0.639 103/Nms11 Motor Regulation k/R½ 40 (5.66) 39.5 (5.6) mNm/W½ (oz-in/W½)12 Internal Resistance - phase to phase RI 0.052 0.026 ohms13 Line to Line Resistance at Connectors RL 0.066 0.04 ohms14 Inductance Phase to Phase L 0.01 0.005 mH15 Mechanical Time Constant τm 4.12 4.1 ms16 Electrical Time Constant τe 0.2 0.2 msGeneral Data17 Maximum Motor Speed nmax 30’000 rpm18 Ambient Working Temperature Range - -30 to +100 (-22 to +212) °C (°F)19 Ambient Storage Temperature Range - -40 to +100 (-40 to +212) °C (°F)20 Ball Bearings Preload - 16 (3.6) N21 Axial Static Force w/o Shaft Support (max) - 134 (30) N22 Maximum Winding Temperature - 125 (257) °C (°F)23 Thermal Resistance Rth 1 / 5.4 °C/W24 Thermal Time Constant τw 1'019 s25 Weight - 230 (8.11) g (oz)26 Rotor Inertia J 64 (906) g-cm227 Hall Sensor Electrical Phasing* - 120 Electrical °4x M3 through holeMax screwing length 4mm1 ±0.05300 44.15 ±0.2+20+00 15+0.35-0.20Ø16 -0.00 -0.05Ø25(3x)120°Ø0.1 A Ø40 +0.35+0.005 -0.006 -0.009A2+0.3-0.1Ø18 -0.00 -0.050 5 107 1015 20 25 30 020,00025,00030,0005,00010,00015,000020 40 60 80 100 120 1400 2 4 6 8 10 12 14 16 18150W100W50WContinuousShort time015,00020,0005,00010,00025,00030,000200WNo load speed (rpm)Power supply voltage (V)No load speed for each coilSpeed (rpm)Torque (mNm)Max. continuous operation at 25°CTorque [oz-in]40ECP44 Ø 40mm • 4-pole • 150W *Also available without Hall sensorsWire DescriptionGray Phase 1 (AWG 18)Violet Phase 2 (AWG 18)Blue Phase 3 (AWG 18)Green VDC (AWG 26)Yellow GND (AWG 26)Orange Hall Sensor 1 (AWG 26)Red Hall Sensor 2 (AWG 26)Brown Hall Sensor 3 (AWG 26)47
