RPX52 Brushless DC Servo Motor
RapidPower™ Xtreme Series

Summary Details

Size: 53mm (2.087 in)
Peak Torque: to 1300mNm (184 oz.in)

High torque density. Excellent torque per frame size performance.

New from ElectroCraft, the RPX52 is a highly dynamic and controllable very small frame metric motor. With an advanced 14-pole encapsulated core, this compact DC motor offers high torque density at a very affordable price. The RPX52 is available in 12V, 24V and 48V versions and like all ElectroCraft motors is fully customizable. This versatile motor is highly energy efficient and ideal for embedded applications.

All versions of the RPX52 include hall sensor feedback and can be configured with an optional encoder (differential, optical encoder with up to 5000 lines).

Additional Product Details

RPX52 Outline Drawing

Mechanical Drawing

RPX52 Performance Curves

Chart Chart Chart: RPX Series Stall Torque at elevated Ambient Temperatures

RPX52 Mechanical / Winding Data

Stack Size Models RPX52-270 RPX52-450
Rated Speed (rpm) 3600 2500
No-Load Speed (rpm) 4600 3200
Continuous Stall Torque* (mNm) 270 450
Continuous Stall Torque* (oz-in) 38.0 63.7
Peak Torque (mNm) 780 1300
Peak Torque (oz-in) 110 184
Motor Constant (mNm / √ Watt) 49.0 90.0
Motor Constant (oz-in / √ Watt) 7.0 12.7
Electrical Time Constant (msec) 0.55 0.85
Mechanical Time Constant (msec) 2.20 1.10
Thermal Time Constant (msec) 580 620
Rotor Inertia (g-cm2) 66 108
Rotor Inertia (oz-in2) .3609 .5905
Thermal Resistance (C / Watts)
With Heatsink
3.7 3.2
Max Axial Load (N) 35 (5mm from face)
Max Radial Load (N) 110 (5mm from face)
Weight (g) 350 540
Weight (oz) 12.40 19.10
Length (inches) 1.8 2.3
Length (mm) 45 57
Number of Poles 14 14
Notes: * Continuous rating based on a 25°C ambient temperature, winding temperature rise of 100°C. Mounted on a 150 X 150 X 6 mm aluminum heat sink.

Winding Models 270V12 270V24 270V48 450V12 450V24 450V48
Design Voltage
(VDC)
12 24 48 12 24 48
Cont. Stall Current
(Amps)
10.9 5.4 2.7 11.8 5.9 3.0
Peak Current
(Amps)
32.7 16.3 8.2 35.5 17.8 8.9
Operating Temperature
(C)
-40 to 150
Voltage Constant
±10%
(V/rad/sec)
0.025 0.049 0.095 0.034 0.070 0.139
Voltage Constant
±10%
(VDC/kRPM)
2.6 5.1 10.0 3.6 7.3 14.6
Torque Constant
±10%
(mNm / Amp)
24.8 49.4 76.3 38.0 73.0 144.0
Torque Constant
±10%
(oz-in / Amp)
3.5 7.0 10.8 5.2 10.3 20.4
Resistance
±10%
(Ohms)
0.20 0.80 3.30 0.16 0.53 2.30
Inductance
±10%
(mH)
0.110 0.440 1.800 0.130 0.450 1.360

RPX52 Connection

hall diagram

RPX52 CAD

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