RPX52 Brushless DC Motor
RapidPower™ Xtreme Series

Summary Details

Size: 52mm (2.047 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

RPX52 Mechanical / Winding Data

RPX52 Stack Size and Winding Models
Specifications RPX52-300V12 RPX52-300V24 RPX52-300V48 RPX52-600V12 RPX52-600V24 RPX52-600V48
Design Voltage (VDC) 12 24 48 12 24 48
No load speed (RPM) 5,500 3,800
Peak Torque (oz-in) 99.2 233.1
Peak Torque (mNm) 700.0 1,650.0
Peak Current (Amps) 36.8 17.4 8.6 56.3 26.5 12.9
Continuous Stall Torque* (oz-in) 42.5 85.0
Continuous Stall Torque* (mNm) 300.0 600.0
Continuous Stall Current (Amps) 15.8 7.5 3.7 20.5 9.7 4.7
Continuous Rated Torque* (oz-in) 27.6 61.6
Continuous Rated Torque* (mNm) 195.0 435.0
Continuous Rated Current (Amps) 10.3 4.9 2.4 14.8 7.0 3.4
Continuous Rated Speed (RPM) 4,200 2,900
Voltage Constant (V / kRPM) 2.2 4.4 8.7 3.2 6.3 12.6
Torque Constant (oz-in / Amp) 2.7 5.7 11.6 4.2 8.8 18.1
Torque Constant (mNm / Amp) 19.0 40.2 81.7 29.3 62.3 127.8
Resistance (Ohms) 0.1 0.5 1.7 0.1 0.3 1.3
Inductance (mH) 0.1 0.4 1.4 0.1 0.3 1.3
Motor Constant (oz-in / √ Watt) 8.1 14.1
Motor Constant (mNm / √ Watt) 57.3 99.7
Electrical Constant (msec) 0.75 0.90
Mechanical Constant (msec) 1.70 1.11
Thermal Time Constant (sec) 1,200.0 1,240.0
Rotor inertia (oz-in²) 0.3390 0.5631
Rotor inertia (g-cm²) 62.0 103.0
Thermal Resistance (C / Watt) 2.79 2.32
Axial Load (N) 5mm from face 35.0 35.0
Radial Load (N) 5mm from face 110.0 110.0
Weight (oz) 12.7 18.3
Weight (g) 360.00 520.00
Length (inch) 1.7 2.2
Length (mm) 44.0 56.0
Number of Poles 14.0 14.0
Notes:  *Continuous rating based on a 25°C ambient temperature, winding temperature rise of 125°C. Mounted on a 150 X 150 X 6 mm aluminum heat sink.

RPX52 Connection

hall diagram

RPX52 CAD

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ElectroCraft Rapid Delivery Program

Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.

Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.

Customers are responsible for all freight charges.

Rapid Delivery to:

Select the region where the product would be delivered to.

The Americas

Part Number Description Typical Lead Time
RPX52-300V24-100-F 52mm Brushless DC Motor, 24VDC, 5500RPM no-load speed, 700 mNm peak torque, 195 mNm continuous at 4200RPM, hall sensors + 5000 line differential encoder 2 days
RPX52-600V24-100-F 52mm Brushless DC Motor, 24VDC, 3800RPM no-load speed, 1650 mNm peak torque, 435 mNm continuous at 2900RPM, hall sensors + 5000 line differential encoder 2 days

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
RPX52-300V24-100-F 52mm Brushless DC Motor, 24VDC, 5500RPM no-load speed, 700 mNm peak torque, 195 mNm continuous at 4200RPM, hall sensors + 5000 line differential encoder 30 days
RPX52-600V24-100-F 52mm Brushless DC Motor, 24VDC, 3800RPM no-load speed, 1650 mNm peak torque, 435 mNm continuous at 2900RPM, hall sensors + 5000 line differential encoder 30 days

Asia

Part Number Description Typical Lead Time
RPX52-300V24-100-F 52mm Brushless DC Motor, 24VDC, 5500RPM no-load speed, 700 mNm peak torque, 195 mNm continuous at 4200RPM, hall sensors + 5000 line differential encoder 2 days
RPX52-600V24-100-F 52mm Brushless DC Motor, 24VDC, 3800RPM no-load speed, 1650 mNm peak torque, 435 mNm continuous at 2900RPM, hall sensors + 5000 line differential encoder 2 days