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V012024 • © 2024 Portescap. Specifications subject to change without notice.Dimensions in mmBrushless DC Slotless Motors26BC 3C Ø 26 mm • 2-pole • 8 W Electrical Data Symbol 26BC 3C-109P.101 Unit1 Nominal Voltage UN 12 Volt2 Optimization Direction - n.a. -3 No-Load Speed n0 14,800 rpm4 Typical No-Load Current I0 180.0 mA5 Max Continuous Mechanical Power (@25°C) Pmax 8.0 W6 Max Continuous Current Ie max 0.8 A7 Max Continuous Torque Me max 7 (1) mNm (oz-in)8 Back EMF Constant kE 0.73 V/1000 rpm9 Torque Constant kM 7.0 mNm/A10 Motor Regulation R/k2 102.0 103/Nms11 Motor Regulation k/R½ 3.1 (0.44) mNm/W½ (oz-in/W½)12 Internal Resistance - phase to phase RI 5.00 ohms13 Line to Line Resistance at Connectors RL 5.00 ohms14 Inductance Phase to Phase L 0.09 mH15 Mechanical Time Constant τm 95.0 ms16 Electrical Time Constant τe 0.02 msGeneral Data17 Maximum Motor Speed nmax 20,000 rpm18 Ambient Working Temperature Range - 0 to +70 (+32 to +158) °C (°F)19 Ambient Storage Temperature Range - 0 to +70 (+32 to +158) °C (°F)20 Ball Bearings Preload - 5.0 N21 Axial Static Force w/o Shaft Support (max) - 45.0 N22 Maximum Winding Temperature - 125 (257) °C (°F)23 Thermal Resistance Rth 14.0 °C/W24 Thermal Time Constant τw 660 s25 Weight - 72 (2.54) g (oz)26 Rotor Inertia J 9.400 g-cm227 Hall Sensor Electrical Phasing - NA Electrical °Wire DescriptionGray Phase 1Violet Phase 2Blue Phase 3sensorless3.3M2x2.3A 120° 3x0.2 A1.5±0.110±0.332.3±0.05 12.5±0.3Ø6±0.05Ø3-0.006-0.009 Ø26 0-0.1Ø10 0-0.022Ø17 Torque [oz-in]Speed (rpm)Torque [mNm]Max. continuous operation at 25°C3W2W1W5W4W0.00 0.20 0.40 0.60 0.80 1.00 1.206,00010,0008,0004,0002,00000 1 2 3 4 5 6 7 8ContinuousShort time*Depends on coil and electronic 3C / 6A*41