Large Bone Surgical Gearmotor - Drill/Reamer (B1112A4)

B1112N4004 SMS Brushless DC Motor for Large Bone Orthopedic Surgical Tools

B1112A4 Autoclavable Cannulated Slotted Brushless DC Gearmotor

Large Bone Surgical gearmotor - Drill/Reamer (B1112A4)

This size 11 brushless DC slotted mini motor is optimized for large bone drill applications; a cannulated shaft, motor torque and speed make this an ideal solution for powered surgical hand tools that are used for joint replacement surgeries of the knee, hip and shoulder. 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 for increased surgeon control and device power
  • Cannulated miniature gear motor allows passage of pins through the motor for pin-driving, and wire-driving / K-wire applications
  • 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 B1112A4001 B1112A4000
Motor Diameter (in) 1.1 1.1
Motor Diameter (mm) 27.94 27.94
Standards Met RoHS Compliant RoHS Compliant
Axial Static Force w/o Shaft Support, Max (lbs) 12.44 19.17
Axial Static Force w/o Shaft Support, Max (N) 55 85.27
Back EMF Constant (V/1000 rpm) 9.12 14.992
Continuous Mechanical Power, Max (@25°C) (W) 83.6 85.2
Electrical Time Constant (ms) 0.404 0.48
Hall Sensor Electrical Phasing (electrical °) 60 60
Inductance - Phase to Phase (mH) 0.023 0.057
Line to Line Resistance (Ohm) 0.057 0.119
Mechanical Time Constant (ms) 2.46 1.79
Motor Constant (mNm/W½) 295.5 345
Motor Constant (oz-in/W½) 41.8 48.7
Motor Regulation (10³/Nms) 0.011 8.45
No-Load Current, Typical (mA) 1487 1090
No-Load Speed (rpm) 1053 938
Nominal Voltage (V) 9.6 14.4
Optimization Direction Bidirectional Bidirectional
Thermal Time Constant (s) 900 900
Torque Constant (mNm/A) 70.6 118.7
Torque Constant (oz-in/A) 10 16.81
Weight (g) 350 354
Weight (oz) 12.4 12.49
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) 13.5 9.21
Continuous Stall Torque (mNm) 815 937.1
Continuous Stall Torque (oz-in) 115.5 132.7
Peak Torque (mNm) 11883 14231
Peak Torque (oz-in) 1683 2015
Radial Static Force w/o Shaft Support, Max (lbs) 22.77 17.5
Radial Static Force w/o Shaft Support, Max (N) 100 77.8
Ratio 16:1 16:1
Thermal Resistance (Slotted) (°C/W) 8.3 8.3
Feedback Type Hall Sensors Hall Sensors