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V012024 • © 2024 Portescap. Specifications subject to change without notice.Dimensions in inches [mm]Surgical Motor SolutionsB0912N4023 Small Bone Orthopedic Drill Ø 0.872 inch • Brushless Slotted • 9.6 V .8125-32 UN-2AMOTOR LEADS:6.0 [152] MIN LONG,18 AWG STRANDEDHALL SENSOR LEADS:6.0 [152] MIN LONG,26 AWG STRANDED3X Ø0.872±.001 [22.15±0.03]Ø0.8199+0-0.0004 +0-0.01 [20.83 ]0.063±.002 [1.60±0.05] 0.479±.002 [12.17±0.05]3.331±.008 [84.62±0.20] 0.787±.011 [19.99±0.28]0.063±.004 [1.61±0.10] 0.218±.004 [5.54±0.10]0.155±.016 [3.94±0.41] Ø0.2361+0-0.0006 +0-0.02 [6.00 ]Ø0.5118+0-0.0003 +0-0.01 [13.00 ]Electrical Data SymbolSMXB0912N4023 Unit1 Nominal Voltage UN 9.6 Volt2 Optimization Direction - Bi-Directional -3 No Load Speed n0 1,104 rpm4 Typical No Load Current I0 1300 mA5 Max. Continuous Mechanical Power (@25°C) Pmax 90.3 W6 Max. Continuous Current Ics 14.48 A7 Max. Continuous Torque Tcs 833 (118) mNm (oz-in)8 Back EMF Constant kE 8.75 V/1000 rpm9 Torque Constant kT 67.69 (9.59) mNm/A (oz-in/A)10 Motor Regulation R/k2 8.73 103/Nms11 Peak Torque Tpk 16007 (2266) mNm (oz-in)12 Motor Constant kM 11.84 (1.68) mNm/W½ (oz-in/W½)13 Line to Line Resistance RL 0.040 ohms14 Inductance Phase to Phase L 0.009 mH15 Mechanical Time Constant τM 2.63 ms16 Electrical Time Constant τE 0.225 msGeneral Data17 Gearhead Ratio - 35:1 Ratio18 Ambient Working Temperature Range - 25 (77) °C (°F)19 Max Operating Temperature Range - 155 (311) °C (°F)20 Radial Static Force w/o Shaft Support (max) - 47.28 lbs21 Axial Static Force w/o Shaft Support (max) - 64.50 lbs22 Thermal Resistance Rth 10.0 °C/W23 Thermal Time Constant τw 950 s24 Weight - 214 (7.55) g (oz)25 Rotor Inertia Jm 24.7 (35.0) kg-cm2 10-4 (oz-in-sec2 10-6)26 Hall Sensor Electrical Phasing* - 60 Electrical °27 Autoclave Cycles - 1000+ Cycles0.09.018.027.036.045.054.063.072.081.090.00.050.0100.0150.0200.0250.0300.0350.0400.0450.0500.00.0950.41900.82851.23801.64751.95702.36652.77603.18553.59503.910454.311404.712355.113305.514255.815206.216156.6Efficiency % WattsB0912N4023 Output - Efficiency PerformanceLoad mNmOutputEfficiency0.050.0100.0150.0200.0250.0300.00200400600800100012000.0950.41900.82851.23801.64751.95702.36652.77603.18553.59503.910454.311404.712355.113305.514255.815206.216156.6RPM AmpsB0912N4023 Speed - Current PerformanceLoad mNmRPMAmpsWire DescriptionBlue Phase ABrown Phase BViolet Phase CRed 4.5 to 24 VdcYellow Sensor 1Orange Sensor 2White Sensor 3Black GND*Also available without Hall sensors134°C71