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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 12 V, 24 V and 48 V versions and like all ElectroCraft motors is fully customizable, with radiation tolerant, high temperature and high altitude versions available on request. Available with a range of IP ratings up to IP65, this versatile motor is highly energy efficient and ideal for embedded applications.
Unit of Measure

Specifications

Size

 N/A 22 mm

Mechanical/Winding Data

Continuous Stall Torque1 N/A 42 mN·m6 oz·in

Peak Torque

 N/A 93 mN·m13.2 oz·in

Motor Constant

 N/A 9.89 mN·m/√ Watt1.4 oz·in/√ Watt

Electrical Time Constant

 N/A 0.37 ms

Mechanical Time Constant

 N/A 1.23 ms

Thermal Time Constant

 N/A 281 ms

Rotor Inertia

 N/A 1.2 g·cm²0.0066 oz·in·s²

Thermal Resistance

 N/A 5.6 ºC/W

Weight

 N/A 2.52 oz71 g

Length

 N/A 2.21 in56.1 mm

Number of Poles

 N/A 8

Design Voltage (Winding Models)

Direct Current (DC) Design Voltage for 42V12 Winding Models

 N/A 12 V

Direct Current (DC) Design Voltage for 42V24 Winding Models

 N/A 24 V

Direct Current (DC) Design Voltage for 42V48 Winding Models

 N/A 48 V

Direct Current (DC) Design Voltage for 62V12 Winding Models

 N/A 12 V

Direct Current (DC) Design Voltage for 62V24 Winding Models

 N/A 24 V

Direct Current (DC) Design Voltage for 62V48 Winding Models

 N/A 48 V

Continuous Stall Current (Winding Models)

Continuous Stall Current for 42V12 Winding Models

 N/A 5.2 A

Continuous Stall Current for 42V24 Winding Models

 N/A 2.5 A

Continuous Stall Current for 42V48 Winding Models

 N/A 1.2 A

Continuous Stall Current for 62V12 Winding Models

 N/A 7.2 A

Continuous Stall Current for 62V24 Winding Models

 N/A 3.6 A

Continuous Stall Current for 62V48 Winding Models

 N/A 1.9 A

Peak Current (Winding Models)

Peak Current for 42V12 Winding Models

 N/A 12.0 A

Peak Current for 42V24 Winding Models

 N/A 6.0 A

Peak Current for 42V48 Winding Models

 N/A 3.0 A

Peak Current for 62V12 Winding Models

 N/A 18.0 A

Peak Current for 62V24 Winding Models

 N/A 9.0 A

Peak Current for 62V48 Winding Models

 N/A 4.8 A

Voltage Constant (Winding Models)

Voltage Constant for 42V12 Winding Models

 N/A 0.008 V/rad/s

Voltage Constant for 42V24 Winding Models

 N/A 0.015 V/rad/s

Voltage Constant for 42V48 Winding Models

 N/A 0.032 V/rad/s

Voltage Constant for 62V12 Winding Models

 N/A 0.010 V/rad/s

Voltage Constant for 62V24 Winding Models

 N/A 0.019 V/rad/s

Voltage Constant for 62V48 Winding Models

 N/A 0.038 V/rad/s

Tolerance for Voltage Constant

 N/A ±10 %

Direct Current (DC) Voltage Constant (Winding Models)

Direct Current (DC) Voltage Constant for 42V12 Winding Models

 N/A 0.8 V/krpm

Direct Current Voltage Constant for 42V24 Winding Models

 N/A 1.6 V/krpm

Direct Current Voltage Constant for 42V48 Winding Models

 N/A 3.3 V/krpm

Direct Current Voltage Constant for 62V12 Winding Models

 N/A 1.0 V/krpm

Direct Current Voltage Constant for 62V24 Winding Models

 N/A 2.0 V/krpm

Direct Current Voltage Constant for 62V48 Winding Models

 N/A 4.0 V/krpm

Tolerance for Direct Current (DC) Voltage Constant

 N/A ±10 %

Torque Constant (Winding Models)

Torque Constant for 42V12 Winding Models

 N/A 8.1 mN·m/A1.15 in·oz/A

Torque Constant for 42V24 Winding Models

 N/A 15.5 mN·m/A2.2 in·oz/A

Torque Constant for 42V48 Winding Models

 N/A 31.8 mN·m/A4.5 in·oz/A

Torque Constant for 62V12 Winding Models

 N/A 9.2 mN·m/A1.3 in·oz/A

Torque Constant for 62V24 Winding Models

 N/A 19.8 mN·m/A2.8 in·oz/A

Torque Constant for 62V48 Winding Models

 N/A 38.1 mN·m/A5.4 in·oz/A

Tolerance for Torque Constant

 N/A ±10 %

Resistance (Winding Models)

Resistance for 42V12 Winding Models

 N/A 0.56 Ohms

Resistance for 42V24 Winding Models

 N/A 2.39 Ohms

Resistance for 42V48 Winding Models

 N/A 9.72 Ohms

Resistance for 62V12 Winding Models

 N/A 0.38 Ohms

Resistance for 62V24 Winding Models

 N/A 1.53 Ohms

Resistance for 62V48 Winding Models

 N/A 5.63 Ohms

Tolerance for Resistance

 N/A ±10 %

Inductance (Winding Models)

Inductance for 42V12 Winding Models

 N/A 0.288 mH

Inductance for 42V24 Winding Models

 N/A 0.9 mH

Inductance for 42V48 Winding Models

 N/A 3.6 mH

Inductance for 62V12 Winding Models

 N/A 0.179 mH

Inductance for 62V24 Winding Models

 N/A 0.6 mH

Inductance for 62V48 Winding Models

 N/A 2.3 mH

Tolerance for Inductance

 N/A ±10 %
  • 1 Continuous rating based on a 25 ºC ambient temperature, winding temperature rise of 100 ºC. Mounted on a 150 x 150 x 6 mm aluminum heat sink.