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Slotless Brushless DC Mini Motor

26BC 6A - Slotless Brushless DC Mini Motor

26BC 6A

The 26BC brushless DC slotless motor utilizes a self-supporting cylindrical ironless coil made in the same winding technique as our ironless DC motors. The 26BC mini motor offers long life, excellent speed and position control and smooth rotation. The integrated electronics features direction selection, start/stop function and output speed signal.

Motor Highlights

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

Customization Available

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

Applications

Specification + Detail
Resources
Metric English 
Winding{%|%}unit 26BC 6A 113 .101 26BC 6A 119 .101 26BC 6A 107 .101 26BC 6A 110 .101
Diameter{%|%}in 1.06 1.06 1.06 1.06
Diameter{%|%}mm 26 26 26 26
Length{%|%}in 1.27 1.27 1.27 1.27
Length{%|%}mm 32.30 32.30 32.30 32.30
Nominal Voltage{%|%}Volt 7.5 7.5 15.0 15.0
Optimization Speed Symmetrical Symmetrical Symmetrical Symmetrical
No-Load Speed{%|%}rpm 7,250 12,500 4,700 9,300
Typical No-Load Current{%|%}mA 170 250 50 120
Max continuous mechanical power (@ 25°C){%|%}W 4.5 4.5 4.5 4.5
Max continuous Current{%|%}A 0.6 1.2 0.2 0.4
Max Continuous Torque{%|%}mNm 4.20 4.00 4.00 4.40
Max Continuous Torque{%|%}oz-in 0.59 0.57 0.57 0.62
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 0.96 0.56 2.66 1.40
Torque Constant{%|%}mNm/A 9.20 5.40 25.40 13.40
Torque Constant{%|%}oz-in/A 1.30 0.76 3.60 1.90
Motor Regulation R/k²{%|%}10³/Nms 80.34 65.16 106.95 98.02
Motor Constant k/R½{%|%}mNm/W½ 3.5 3.9 3.1 3.2
Motor constant k/R½{%|%}oz-in/W½ 0.50 0.56 0.43 0.45
Internal resistance - phase to phase{%|%}Ω 6.80 1.90 69.00 17.60
Line to Line resistance at connectors{%|%}Ω 6.80 1.90 69.00 17.60
Inductance - phase to phase{%|%}mH 0.12 0.03 1.23 0.32
Friction Torque{%|%}onz-in
Friction Torque{%|%}mNm
Rotor Inductance (mH)
Mechanical Time Constant{%|%}ms 75.0 61.0 100.0 92.0
Electrical time constant{%|%}ms 0.02 0.02 0.02 0.02
Max motor speed{%|%}rpm 8,000 14,000 5,600 11,000
Ambient working temperature range{%|%}°C 0 / + 70 0 / + 70 0 / + 70 0 / + 70
Ambient working temperature range{%|%}°F 32 / 158 32 / 158 32 / 158 32 / 158
Ambient storage temperature range{%|%}°C 0 / + 70 0 / + 70 0 / + 70 0 / + 70
Ambient storage temperature range{%|%}°F 32 / 158 32 / 158 32 / 158 32 / 158
Ball bearings preload{%|%}N 5.0 5.0 5.0 5.0
Axial static force without shaft support{%|%}N 45 45 45 45
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 14 14 14 14
Thermal Time Constant{%|%}s 660 660 660 660
Operating Temperature Range{%|%}°F
Weight{%|%}oz 2.54 2.54 2.54 2.54
Weight{%|%}g 72 72 72 72
Rotor Inertia{%|%}gcm²
Rotor Inertia{%|%}gcm² 9.4 9.4 9.4 9.4
Typical Housing Material Aluminium alloy / plastic Aluminium alloy / plastic Aluminium alloy / plastic Aluminium alloy / plastic
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
26BC6A drawing Brushless DC DXF Drawing  
26BC6A Specification Sheet Brushless DC Specification Page  
26BC 6A 3D Drawing Brushless DC 3D  
Timing Relationship in Brushless DC Motors (diagram) Brushless DC Literature  
About Brushless DC Motors (brochure) Brushless DC Literature  
Miniature Motors for Automated Solutions (brochure) Literature