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QB Series Framless Brushless Motors - Emoteq

emoteq-qb-qs.jpg Quantum (QB) series of frameless brushless servo motors are specifically designed for direct axis integration in machine applications where a housed motor is undesirable.

The QB series are brushless kit motors (rotor & stator sets) designed to deliver high performance and servo precision at minimal cost. They can be easily customized to the exact specs required, and high speed QS versions are available with improved efficiency at high speeds.

The QB series are optimized for high output power, high torque density, and low cogging torque. Their high power density ratio allows a smaller size motor to be used in many applications, saving space and weight.

Quantum motors are also available as housed versions in standard NEMA sizes for use as traditional servo motors in typical servo applications.

Common applications of the frameless QB series include high speed pumps and fans, laboratory automation, cash counter/handling devices, and semiconductor manufacturing.

Features & Benefits

  • Frameless brushless servo motors designed to be compact and cost-effective
  • Rated stall torque from 11.5 oz-in (0.08 Nm) up to 10.40 ft-lb (14.10 Nm)
  • Standard winding voltage ratings of 24, 40, 130, and 300 VDC
  • High strength NdFeB magnets maximize torque production
  • Integrated Hall sensors for commutation
  • Computer optimized design for maximum power and torque density ensures the most compact and efficient design possible

Options

  • Custom winding options to provide higher operating ranges of speed and voltage (up to 300 VDC)
  • Alternate rotor through-bore size
  • Thermistor or other temperature-sensing options
Model No. QB01700 QB01701 QB01702
Motor Constants
Stall Torque (continuous) oz-in 11.5 21.6 33.5
Nm 0.08 0.15 0.23
Demag Torque (±25%) oz-in 92 169 264
Nm 0.65 1.19 1.87
Motor Constant oz-in/√W 3.20 4.99 6.85
Nm/√W 0.023 0.035 0.048
Elect. Time Constant ms 0.380 0.520 0.590
Mech. Time Constant ms 2.030 1.670 1.330
Thermal Resistance °C/W 4.7 3.29 2.58
Viscous Damping oz-in/RPM 7.5E-5 1.5E-4 2.3E-4
Nm/RPM 5.3E-5 1.1E-6 1.6E-6
Cogging Torque (max.) oz-in 1.0 1.5 1.8
Nm 7.0E-3 1.1E-2 1.3E-2
Mechanical Constants
Motor Inertia oz-in-s2
1.4E-4
2.9E-4 4.4E-4
kg-m2 1.0E-7 2.0E-6 3.1E-6
Motor Weight oz 2.5 5.0 7.4
kg 0.07 0.14 0.21
Max Rotor ID in 0.4720
mm 12.0
Poles - 6
Winding Constants
Winding - A B C A B C A B C
Design Voltage V 24 40 130 24 40 130 24 40 130
Peak Torque oz-in 92 92 92 163 169 169 219 264 264
Nm 0.65 0.65 0.65 1.15 1.19 1.19 1.55 1.87 1.87
Peak Current A 36 24 15 44 35 14 42 41 16
Torque Constant (±10%) oz-in/A 2.54 3.84 6.04 3.65 4.79 11.35 5.13 6.32 16.20
Nm/A 0.018 0.027 0.043 0.026 0.034 0.080 0.036 0.045 0.114
No Load Speed RPM 12775 14068 29095 8874 11287 15488 6318 8555 10851
rad/s 1337 1473 3046 829 1182 1621 661 895 1136
BEMF Constant (±10%)

V/kRPM 1.88 2.84 4.46 2.70 3.54 8.39 3.79 4.67 11.98
V/rad/s 0.018 0.027 0.043 0.026 0.034 0.080 0.036 0.045 0.114
Terminal Resistance (±12%) Ohms 0.63 1.51 3.76 0.530 1.050 6.440 0.56 0.86 5.62
Terminal Inductance (±30%) mH 0.24 0.55 1.36 0.28 0.48 2.68 0.330 0.5 3.29

 

Model No. QB01703
Motor Constants
Stall Torque (continuous) oz-in 43.5
Nm 0.30
Demag Torque (±25%) oz-in 341
Nm 2.41
Motor Constant oz-in/√W 8.11
Nm/√W 0.057
Elect. Time Constant ms 0.65
Mech. Time Constant ms 1.26
Thermal Resistance °C/W 2.14
Viscous Damping oz-in/RPM 3.1E-4
Nm/RPM 2.2E-6
Cogging Torque (max.) oz-in 2.2
Nm 1.6E-2
Mechanical Constants
Motor Inertia oz-in-s2 5.8E-4
kg-m2 4.1E-6
Motor Weight oz 9.7
kg 0.27
Max Rotor ID in 0.4720
mm 12.0
Poles - 6
Winding Constants
Winding - A B C
Design Voltage V 24 40 130
Peak Torque oz-in 258 341 341
Nm 1.82 2.41 2.41
Peak Current A 42 49 20
Torque Constant (±10%) oz-in/A 6.21 6.88 16.83
Nm/A 0.043 0.049 0.119
No Load Speed RPM 5302 7855 10444
rad/s 555 822 1093
BEMF Constant (±10%)

V/kRPM 4.52 5.09 12.44
V/rad/s 0.043 0.049 0.119
Terminal Resistance (±12%) Ohms 0.56 0.72 4.43
Terminal Inductance (±30%) mH 0.37 0.47 2.81

 

 

 
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