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Slotless Flat Brushless Motor

32BF nuvoDisc - Slotless Flat Brushless Motor

32BF nuvoDisc

The 32BF brushless DC slotless motor utilizes 6 self supporting ironless coils. The 32BF miniature motor offers long life, excellent speed and position control and smooth rotation. Using a disc magnet design, it has no iron losses and a flat shape.

Motor Highlights

  • With or without hall sensors
  • slotless
  • 8 poles
  • Compact design
  • No iron losses
  • High efficiency
  • Flat design
  • 3 phases

Customization Available

  • Shaft lengths
  • Special coils
  • Cables and connectors
  • Value added mounting

Applications

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Specification + Detail
Resources
Metric English 
Winding{%|%}unit 32BF 8B K .10
Diameter{%|%}in 1.31
Diameter{%|%}mm 32
Length{%|%}in 0.44
Length{%|%}mm 11.20
Nominal Voltage{%|%}Volt 12.0
Optimization Speed Symmetrical
No-Load Speed{%|%}rpm 13,600
Typical No-Load Current{%|%}mA 100
Max continuous mechanical power (@ 25°C){%|%}W 40.0
Max continuous Current{%|%}A 1.5
Max Continuous Torque{%|%}mNm 13.00
Max Continuous Torque{%|%}oz-in 1.84
Terminal Resistance{%|%}Ω
Output Power{%|%}W
Stall Torque{%|%}oz-in
Stall Torque{%|%}mNm
Efficiency{%|%}%
Speeds up to{%|%}rpm
Torque up to{%|%}oz-in
Torque up to{%|%}mNm
Current up to{%|%}thermal limits
Back-EMF Constant{%|%}V/1000 rpm 0.87
Torque Constant{%|%}mNm/A 8.30
Torque Constant{%|%}oz-in/A 1.18
Motor Regulation R/k²{%|%}10³/Nms 57.50
Motor Constant k/R½{%|%}mNm/W½ 4.2
Motor constant k/R½{%|%}oz-in/W½ 0.59
Internal resistance - phase to phase{%|%}Ω 3.95
Line to Line resistance at connectors{%|%}Ω 3.95
Inductance - phase to phase{%|%}mH 0.12
Friction Torque{%|%}onz-in
Friction Torque{%|%}mNm
Rotor Inductance (mH)
Mechanical Time Constant{%|%}ms 64.9
Electrical time constant{%|%}ms 0.03
Max motor speed{%|%}rpm 30,000
Ambient working temperature range{%|%}°C -30/+80
Ambient working temperature range{%|%}°F -22/+176
Ambient storage temperature range{%|%}°C -40/+80
Ambient storage temperature range{%|%}°F -40/+176
Ball bearings preload{%|%}N 2.7
Axial static force without shaft support{%|%}N 27
Max Winding Temperature (°C)
Max winding temperature{%|%}°C 125
Max Winding Temperature{%|%}°F
Max winding temperature{%|%}°F 257
Thermal Resistance{%|%}°C/W 13
Thermal Time Constant{%|%}s 550
Operating Temperature Range{%|%}°F
Weight{%|%}oz 0.95
Weight{%|%}g 27
Rotor Inertia{%|%}gcm²
Rotor Inertia{%|%}gcm² 11.3
Typical Housing Material Plastic
Hall Sensor Elecrical Phasing{%|%}electrical ° 120
Absolute accuracy 2 ph. On, Full step mode (degree)
Bearing Type
Detent Torque, Max (mNm)
Detent Torque, Max (oz-in)
Dielectric Withstanding Voltage (VAC)
Holding Torque, MIN (mNm)
Holding Torque, MIN (oz-in)
Inductance per Phase, typ (mH)
Insulation Resistance at 500 VDC (Mohms)
Leadwire
Maximum Coil Temperature (C)
Maximum Coil Temperature (F)
Operating Voltage (VDC)
Rated Current per Phase, 1 Phase ON (A)
Resistance per Phase, ± 10% (Ohms)
Rotor Inertia (oz-in-sec²10^-6)
Continuous Stall Current (A)
Peak Torque for 1s (mNm)
Peak Torque for 1s (oz-in)
Peak Current (A)
Max Axial Shaft Load (N)
Max Axial Shaft Load (oz)
Max Radial Shaft Load (N)
Max Radial Shaft Load (oz)
Shaft Load Max Axial (lb)
Shaft Load Max Axial (N)
Shaft Load Max Radial (lb)
Shaft Load Max Radial (N)
Steps per Revolution
Back EMF Amplitude (V/ksteps/s)
Nominal Phase Current (1 ph. On) (A)
Nominal Phase Current (2 ph. On) (A)
Angular Acceleration (nominal current)
Axial Shaft Play (µm)
Holding Torque Typical (mNm)
Holding Torque Typical (oz-in)
Holding Torque, 1.5x nominal current (mNm)
Holding Torque, 1.5x nominal current (oz-in)
Natural Resonance Frequency @nominal current (Hz)
Power rate (nominal current) (kW/s)
Radial Shaft Play (µm)
Max. Force* @ .001" (0.0254 mm) / Step (N)
Max. Force* @ .001" (0.0254 mm) / Step (oz)
Max. Force* @ .002" (0.0508 mm) / Step (N)
Max. Force* @ .002" (0.0508 mm) / Step (oz)
Max. Force* @ .004"(0.1016 mm) / Step (N)
Max. Force* @ .004"(0.1016 mm) / Step (oz)
Stroke Length, Typ{%|%}mm
Stroke Length, Typ{%|%}in
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (oz)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (oz)
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}N
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}oz
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (oz)
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%)oz
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}oz
Number of lines available
Output signal
Supply Current - maxium (mA)
Supply Current - stand-by (μA)
Supply Current - typical (mA)
Supply Voltage (V)
Direction of rotation ( = / ≠)
Max. Recommended Input Speed (rpm)
Number of gear stages
Number of lines available
Type of encoder
Linear Travel Accuracy
Input Power (W)
Stepper Type
Document Technology Document Type Language File Type
32BF_nuvodisc drawing Brushless DC DXF Drawing  
32BF nuvoDisc Specification Sheet Brushless DC Specification Page  
Timing Relationship in Brushless DC Motors (diagram) Brushless DC Literature  
Miniature Motors for Automated Solutions (brochure) Literature  
About Brushless DC Motors (brochure) Brushless DC Literature  
Portescap MotionCompass: Guide to Interactive Motor Selection (brochure) Literature  
32bf_8b 3D drawing Brushless DC 3D  
32bf_3c 3D drawing Brushless DC 3D