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Brush DC High Power Density Motor

22N78 Athlonix - Brush DC High Power Density Motor

22N78 Athlonix

The 22N78 Athlonix design combines high power density and precious metal commutation. This coreless DC motor can deliver a torque greater than 13 mNm continuously, reaching up to 90% efficiency while maintaining a long lifetime.

Motor Highlights

  • Ironless construction
  • Neodymium magnet for high performance
  • High power density
  • Precious metal commutation
  • Long brush lifetime
  • Compact design
  • Winding possibilities
  • REE windings to reduce electro erosion
  • Low self heating

Customization Available

  • Shaft lengths
  • Special coils
  • Cable and connectors
  • Ball bearings
  • Fixation holes

Applications

Specification + Detail
Resources
Metric English 
Winding{%|%}unit 22N78-319P.1001 22N78-313P.1001 22N78-311P.1001 22N78-216E.1001 22N78-215E.1001 22N78-208E.1001
Diameter{%|%}in 0.87 0.87 0.87 0.87 0.87 0.87
Diameter{%|%}mm 22 22 22 22 22 22
Nominal Voltage{%|%}Volt 6.0 9.0 12.0 18.0 24.0 48.0
Optimization (rpm)
No-Load Speed{%|%}rpm 8,660 6,860 7,280 8,250 9,075 6,350
Type
Resolution (line counts)
Supply Voltage (V)
Supply Current - typical (mA)
Supply Current - maxium (mA)
Supply Current - stand-by (μA)
Rise time (ns)
Fall time (ns)
No-Load Current{%|%}mA 28.0 10.0 11.0 6.0 5.0 1.0
Max continuous mechanical power (@ 25°C)
Max continuous Current (A)
Max Continuous Torque (mNm)
Max Continuous Torque (oz-in)
Terminal Resistance{%|%}Ω 0.6 2.5 3.9 7.7 11.0 107.0
Output Power{%|%}W 13.0 12.0 12.0 11.3 11.5 10.0
Stall Torque{%|%}oz-in 9.35 6.37 6.80 6.94 7.79 4.53
Stall Torque{%|%}mNm 66.00 45.00 48.00 49.00 55.00 32.00
Efficiency{%|%}% 90 90 88 90 91 91
Speeds up to{%|%}rpm 10,000 10,000 10,000 10,000 10,000 10,000
Torque up to{%|%}oz-in 2.22 2.05 2.10 1.95 2.05 1.83
Torque up to{%|%}mNm 15.70 14.50 14.80 13.80 14.50 12.90
Current up to (thermal limits){%|%}Amp 2.40 1.18 0.95 0.67 0.58 0.18
Back-EMF Constant{%|%}mV/rpm 0.69 1.31 1.64 2.18 2.64 7.54
Torque Constant{%|%}mNm/A 6.6 12.5 15.7 20.8 25.2 72.0
Torque Constant{%|%}oz-in/A 0.93 1.77 2.22 2.95 3.57 10.20
Motor Regulation{%|%}10³/Nms 14 16 16 18 17 21
Motor regulation k/R½{%|%}mNm/W
Motor regulation k/R½ (oz-in/W)
Internal resistance - phase to phase (W)
Line to Line resistance at connectors (Ω)
Inductance - phase to phase (mH)
Friction Torque{%|%}oz-in 0.009 0.035 0.016 0.017 0.017 0.013
Friction Torque{%|%}mNm 0.07 0.25 0.11 0.12 0.12 0.07
Rotor Inductance{%|%}µH 40 160 250 500 600 7,000
Mechanical Time Constant{%|%}ms 6.7 7.0 6.6 8.4 7.8 6.9
Rotor Inertia{%|%}gcm²
Rotor Inertia{%|%}gcm² 4.900 4.390 4.200 4.740 4.500 3.320
Thermal Resistance{%|%}C/W 6/22 6/22 6/22 6/22 6/22 6/22
Thermal Time Constant{%|%}C/W 9/550 9/550 9/550 9/550 9/550 9/550
Absolute accuracy 2 ph. On, Full step mode (degree)
Ambient working temperature range (C)
Ambient working temperature range (F)
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 (A)
Resistance per Phase, ± 10% (Ohms)
Rotor Inertia (oz-in-sec²10{%SUP%}-6{%/SUP%})
Step Angle (degree)
Electrical time constant (ms)
Max motor speed (rpm)
Ambient storage temperature range (C)
Ambient storage temperature range (F)
Ball bearings preload (N)
Axial static force without shaft support (N)
Max winding temperature (C)
Max Winding Temperature (C)
Max Winding Temperature (F)
Max winding temperature (F)
Hall Sensor Elecrical Phasing (degree)
Typical Housing Material
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)
Length (in)
Length (mm)
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)
Max. Travel @ 0.001" (0.0254 mm) / Step (N)
Max. Travel @ 0.001" (0.0254 mm) / Step (oz)
Max. Travel @ 0.002" (0.0508 mm) / Step (N)
Max. Travel @ 0.002" (0.0508 mm) / Step (oz)
Max. Travel @ 0.004" (0.1016 mm) / Step (N)
Max. Travel @ 0.004" (0.1016 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 @ 0.004" (0.1016 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (oz)
Output signal
Direction of rotation ( = / ≠)
Max. Recommended Input Speed (rpm)
Number of gear stages
Electrical phase shift (degree)
Duty cycle (%)
Maximum count frequency (kHz)
Maximum speed @ 512 ppr (10{%SUP%}-7{%/SUP%} x kgm²)
Operating Temperature Range: Motor{%|%}°C -30C to 85C -30C to 85C -30C to 85C -30C to 85C -30C to 85C -30C to 85C
Operating Temperature Range: Motor{%|%}°F -22F to 185F -22F to 185F -22F to 185F -22F to 185F -22F to 185F -22F to 185F
Operating Temperature Range: Rotor{%|%}°C 100C 100C 100C 100C 100C 100C
Operating Temperature Range: Rotor{%|%}°F 212F 212F 212F 212F 212F 212F
Code wheel moment of inertia (10{%SUP%}-7{%/SUP%} x kgm²)
Weight{%|%}oz 1.87 1.87 1.87 1.87 1.87 1.87
Weight{%|%}g 53.0 53.0 53.0 53.0 53.0 53.0
Document Technology Document Type Language File Type
22N78 and 22N98 Athlonix drawing Brush DC DXF Drawing  
22N78 Athlonix Specification Sheet Brush DC Specification Page  
22n78_311_1001 3D drawing Brush DC 3D  
Miniature Motors for Automated Solutions (brochure) Literature  
Miniature Motors for Medical Equipment (brochure) Literature