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Slotless Brushless DC Mini Motor

16BHS 2-wires - Slotless Brushless DC Mini Motor

16BHS 2-wires

The 16BHS brushless DC slotless motor uses a self-supporting cylindrical ironless coil that is made with the same winding method as our ironless motors. The 16BHS miniature motor offers long life, excellent speed and position control and smooth rotation.

Motor Highlights

  • Integrated electronics
  • Slotless
  • 2 poles
  • Compact design
  • Low iron losses at high speed
  • High efficiency
  • 3 phases

Customization Available

  • Shaft lengths
  • Special coils
  • Cables and connectors
  • Special mounting holes pattern
  • Value addtion mounting

Applications

Specification + Detail
Resources
Metric English 
Winding{%|%}unit 16BHS 2A E .01 16BHS 2A L .01 16BHS 2A P .01 16BHS 2A T .01
Diameter{%|%}in 0.63 0.63 0.63 0.63
Diameter{%|%}mm 16 16 16 16
Length{%|%}in 1.27 1.27 1.27 1.27
Length{%|%}mm 32.30 32.30 32.30 32.30
Nominal Voltage{%|%}Volt 12.0 12.0 12.0 12.0
Optimization Speed Symmetrical Symmetrical Symmetrical Symmetrical
No-Load Speed{%|%}rpm 8,740 12,740 17,100 33,770
Typical No-Load Current{%|%}mA 55 75 112 235
Max continuous mechanical power (@ 25°C){%|%}W 6.0 6.0 6.0 6.0
Max continuous Current{%|%}A 0.3 0.4 0.6 1.2
Max Continuous Torque{%|%}mNm 3.80 3.60 4.00 4.00
Max Continuous Torque{%|%}oz-in 0.54 0.51 0.57 0.57
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 1.19 0.84 0.65 0.34
Torque Constant{%|%}mNm/A 11.40 8.10 6.20 3.30
Torque Constant{%|%}oz-in/A 1.61 1.15 0.88 0.47
Motor Regulation R/k²{%|%}10³/Nms 225.50 251.50 205.50 192.80
Motor Constant k/R½{%|%}mNm/W½ 2.1 2.0 2.1 2.2
Motor constant k/R½{%|%}oz-in/W½ 0.30 0.28 0.30 0.31
Internal resistance - phase to phase{%|%}Ω 29.30 16.50 7.90 2.10
Line to Line resistance at connectors{%|%}Ω
Inductance - phase to phase{%|%}mH 1.17 0.66 0.32 0.08
Friction Torque{%|%}onz-in
Friction Torque{%|%}mNm
Rotor Inductance (mH)
Mechanical Time Constant{%|%}ms 11.8 13.2 10.7 10.3
Electrical time constant{%|%}ms 0.04 0.04 0.04 0.04
Max motor speed{%|%}rpm 10,900 10,900 10,900 10,900
Ambient working temperature range{%|%}°C -30 to +80 -30 to +80 -30 to +80 -30 to +80
Ambient working temperature range{%|%}°F -22 to +176 -22 to +176 -22 to +176 -22 to +176
Ambient storage temperature range{%|%}°C -40 to +80 -40 to +80 -40 to +80 -40 to +80
Ambient storage temperature range{%|%}°F -40 to +176 -40 to +176 -40 to +176 -40 to +176
Ball bearings preload{%|%}N 2.0 2.0 2.0 2.0
Axial static force without shaft support{%|%}N 25 25 25 25
Max Winding Temperature (°C)
Max winding temperature{%|%}°C 125 125 125 125
Max Winding Temperature{%|%}°F
Max winding temperature{%|%}°F 257 257 257 257
Thermal Resistance{%|%}°C/W 22 22 22 22
Thermal Time Constant{%|%}s 520 520 520 520
Operating Temperature Range{%|%}°F
Weight{%|%}oz 1.16 1.16 1.16 1.16
Weight{%|%}g 33 33 33 33
Rotor Inertia{%|%}gcm²
Rotor Inertia{%|%}gcm² 0.5 0.5 0.5 0.5
Typical Housing Material Stainless steel aluminum flanges Stainless steel aluminum flanges Stainless steel aluminum flanges Stainless steel aluminum flanges
Hall Sensor Elecrical Phasing{%|%}electrical °
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
16BHS_2-wire drawing Brushless DC DXF Drawing  
16BHS 2-wires 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  
16bhs_2-wires 3D drawing Brushless DC 3D