RPX52 Brushless DC Servo Motor
RapidPower™ Xtreme Series

Summary Details

Size: 53mm (2.087 in)
Peak Torque: to 1650 mNm (234 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

Electrical Ratings / Winding Data

Parameter Symbol Units RPX52-300 RPX52-600
Rated Speed rpm 4200 2900
No-Load Speed rpm 5500 3800
Continuous Stall Torque* Tc mNm
(oz.in)
300
(42.5)
600
(85)
Peak Torque Tp mNm
(oz.in)
700
(99)
1650
(234)
Motor Constant Km mNm/√Watt
(oz.in/√Watt)
57.3
(8.1)
99.7
(14.1)
Elec. Time Constant te msec 0.75 0.90
Mech. Time Constant tm msec 1.70 1.11
Thermal Time Constant τth sec 1200 1240
Rotor Inertia J g-cm² 62 103
Thermal Resistance With Heat Sink Rth C/Watt 2.79 2.32
Weight W g
(oz)
360
(12.70)
520
(18.30)
Motor Length L mm
(in)
44
(1.7)
56
(2.2)
Number of Poles 14 14
RPX52-300 RPX52-600
V12 V24 V48 V12 V24 V48
Design Voltage V volts DC 12 24 48 12 24 48
Cont. Stall Current lc amperes 15.8 7.9 3.9 20.5 10.2 5.1
Peak Current lp amperes 36.8 17.4 8.6 56.3 26.5 12.9
Voltage Constant ±10% Ke V/rad/sec
(V/KRPM)
0.021
(2.2)
0.042
(4.4)
0.084
(8.7)
0.031
(3.2)
0.061
(6.3)
0.121
(12.6)
Torque Constant ±10% Kt mNm/amp
(oz.in/amp)
19.0
(2.7)
40.2
(5.7)
81.7
(11.6)
29.3
(4.1)
62.3
(8.8)
127.8
(18.1)
Resistance ±10% Rm Ohms 0.14 0.46 1.74 0.14 0.34 1.26
Inductance ±30% Ln mH 0.090 0.370 1.400 0.100 0.330 1.280

RPX52 Connection

hall diagram

RPX52 CAD

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