RPX22 Brushless DC Servo Motor
RapidPower™ Xtreme Series

Summary Details

Size: 22mm (0.86 in)
Peak Torque:178.0 mNm (25.2 oz.in)

High torque density. Excellent torque per frame size performance.

New from ElectroCraft, the RPX22 is a highly dynamic and controllable very small frame metric motor. With an advanced 8-pole encapsulated core, this compact DC motor offers high torque density at a very affordable price. The RPX22 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 RPX22 include hall sensor feedback and can be configured with an optional encoder (differential, optical encoder with up to 2048 lines)

Additional Product Details

RPX22 Outline Drawing

Technical Drawings

RPX22 Performance Curves

rpx22 rpx22 Chart: RPX Series Stall Torque at elevated Ambient Temperatures

RPX22 Mechanical / Winding Data

Stack Size Models RPX22-042 RPX22-062
Rated Speed (rpm) 8900 8600
No-Load Speed (rpm) 15000 12000
Continuous Stall Torque* (mNm) 42 62
Continuous Stall Torque* (oz-in) 6.0 9.0
Peak Torque (mNm) 93 178
Peak Torque (oz-in) 13.2 25.2
Motor Constant (mNm / √ Watt) 9.89 15.5
Motor Constant (oz-in / √ Watt) 1.4 2.2
Electrical Time Constant (msec) 0.37 0.39
Mechanical Time Constant (msec) 1.23 1.17
Thermal Time Constant (msec) 281 280
Rotor Inertia (g-cm2) 1.2 2.4
Rotor Inertia (oz-in2) 0.0066 0.0131
Thermal Resistance (C / Watts)
With Heatsink
5.6 4.32
Max Axial Load (N) 4 (5mm from face)
Max Radial Load (N) 12 (5mm from face)
Weight (g) 72 108
Weight (oz) 2.52 3.78
Length no encoder (inches) 1.92 2.72
Length no encoder (mm) 49 69
Number of Poles 8 8
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 42V12 42V24 42V48 62V12 62V24 62V48
Design Voltage
(VDC)
12 24 48 12 24 48
Cont. Stall Current
(Amps)
5.2 2.5 1.2 7.2 3.6 1.9
Peak Current
(Amps)
12.0 6.0 3.0 18.0 9.0 4.8
Operating Temperature (C) -40 to 150
Voltage Constant
±10%
(V/rad/sec)
0.008 0.015 0.032 0.010 0.019 0.038
Voltage Constant
±10%
(VDC/kRPM)
0.8 1.6 3.3 1.0 2.0 4.0
Torque Constant
±10%
(mNm / Amp)
8.2 15.6 31.9 9.6 19.9 38.3
Torque Constant
±10%
(oz-in / Amp)
1.2 2.2 4.5 1.4 2.8 5.4
Resistance
±10%
(Ohms)
0.56 2.39 9.72 0.38 1.53 5.63
Inductance
±10%
(mH)
0.288 0.900 3.600 0.179 0.600 2.300

RPX22 Connection

hall diagram

RPX22 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
RPX22-042V24-100-S 30 days
RPX22-062V24-100-S 30 days

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
No products available

Asia

Part Number Description Typical Lead Time
RPX22-042V24-100-S 30 days
RPX22-062V24-100-S 30 days