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Spine Drill Surgical Motor (B0512A1)

B0512N1029 SMS Brushless DC High Speed Motor for Surgical Tools

B0512A1 Autoclavable Slotted Brushless DC Motor

Spine Drill Surgical Motor (B0512A1)

This size 5 brushless DC slotted motor is optimized for high-speed drill applications. Motor torque and speed make this an ideal solution for powered surgical hand tools that are used for high-speed drilling in spine, cranial, maxiofacial, and otologic (ear) surgery. Portescap mini motors for surgical power applications are designed for high reliability in autoclave environments.

Product Highlights

  • Designed for autoclave applications requiring up to 1000 autoclave cycles
  • Optimized for use in surgical powered devices
  • High torque and high speed design optimized for precise drilling into dense bone
  • High speed electric motors allow for increased precision, cleaner cuts, and shorter surgery cases
  • Lightweight and low vibration for increased surgeon tactile feel
  • High efficiency to optimize thermal performance at high speeds
  • Small size allowing smaller surgical hand tool designs and improved ergonomics
  • Withstands high current draw

Customization Available

  • Coil modifications - resistance and inductance
  • Connectors
  • Custom shafts - flats, knurling, diameter, length
  • Dust protection sealing of cables output
  • Mechanical integration upon request (housing, front & rear flange, shaft)
  • Without hall sensors


Part Number B0512A1000 B0512A1001
Motor Diameter (in) 0.5 0.5
Motor Diameter (mm) 12.7 12.7
Standards Met RoHS Compliant RoHS Compliant
Axial Static Force w/o Shaft Support, Max (lbs) 3.33 0.8
Axial Static Force w/o Shaft Support, Max (N) 14.81 3.5
Back EMF Constant (V/1000 rpm) 0.515 0.25
Continuous Mechanical Power, Max (@25°C) (W) 87.4 87.4
Electrical Time Constant (ms) 0.07 0.068
Hall Sensor Electrical Phasing (electrical °) 60 60
Inductance - Phase to Phase (mH) 0.094 0.028
Line to Line Resistance (Ohm) 1.33 0.41
Mechanical Time Constant (ms) 2.62 3.42
Motor Constant (mNm/W½) 4.27 3.73
Motor Constant (oz-in/W½) 0.61 0.528
Motor Regulation (10³/Nms) 55 72
No-Load Current, Typical (mA) 120 269
No-Load Speed (rpm) 97400 96000
Nominal Voltage (V) 48 24
Optimization Direction Bidirectional Bidirectional
Thermal Time Constant (s) 485 485
Torque Constant (mNm/A) 4.92 2.39
Torque Constant (oz-in/A) 0.7 0.34
Weight (g) 39 45
Weight (oz) 1.36 1.59
Winding Temperature, Max (°C) 155 155
Winding Temperature, Max (°F) 311 311
Ambient Temperature (°C) 155 155
Ambient Temperature (°F) 311 311
Autoclave Cycles 1000 1000
Continuous Stall Current (A) 2.02 3.63
Continuous Stall Torque (mNm) 9.5 8.28
Continuous Stall Torque (oz-in) 1.34
Peak Torque (mNm) 176.1 139.8
Peak Torque (oz-in) 24.9 19.79
Radial Static Force w/o Shaft Support, Max (lbs) 15.3 9.1
Radial Static Force w/o Shaft Support, Max (N) 68.2 40.5
Ratio - -
Thermal Resistance (Slotted) (°C/W) 15.9 15.9
Feedback Type Hall Sensors Hall Sensors
Document Document Type Language File Type
High Speed Motor (B0512A1) Specification Page Specification Page
drawing_b0512a1001.DXF 2D Drawing application/octet-stream
drawing_b0512a1001.STEP 3D Drawing application/octet-stream