FAULHABER SR Series 2224 ... SR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 2224 ... SR

Precious Metal Commutation

Key Features

Nominal voltage:

3 ... 36 V

Rated torque up to:

6.8 mNm

No-load speed up to:

8200 min⁻¹

Stall torque up to:

21.4 mNm

Diameter:

22 mm

Length:

24.2 mm

Advantages

Powerful rare-earth magnet

Wide operating temperature range: -30 °C to +85 °C (optional to +125 °C)

All-steel housing with corrosion-resistant coating

No cogging torque, highly dynamic performance, precise speed control

Low current and starting voltage

Extremely compact and lightweight design with integrated encoder

Variants:

Series 2224U003SR

Series 2224U006SR

Series 2224U012SR

Series 2224U018SR

Series 2224U024SR

Series 2224U036SR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	3 V
Terminal resistance	R	0.56 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.066 A
Stall torque	M_H	18.5 mNm
Friction torque	M_R	0.23 mNm
Speed constant	k_n	2730 min⁻¹/V
Back-EMF constant	k_E	0.366 mV/min⁻¹
Torque constant	k_M	3.49 mNm/A
Current constant	k_I	0.286 A/mNm
Slope of n-M curve	Δn/ΔM	438 min⁻¹/mNm
Rotor inductance	L	11 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.4 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	1.94 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8200 min⁻¹
No-load current	I₀	0.029 A
Stall torque	M_H	21.2 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	1380 min⁻¹/V
Back-EMF constant	k_E	0.725 mV/min⁻¹
Torque constant	k_M	6.92 mNm/A
Current constant	k_I	0.144 A/mNm
Slope of n-M curve	Δn/ΔM	387 min⁻¹/mNm
Rotor inductance	L	45 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	78 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	8.71 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.014 A
Stall torque	M_H	19.8 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	657 min⁻¹/V
Back-EMF constant	k_E	1.52 mV/min⁻¹
Torque constant	k_M	14.5 mNm/A
Current constant	k_I	0.069 A/mNm
Slope of n-M curve	Δn/ΔM	394 min⁻¹/mNm
Rotor inductance	L	200 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	17.5 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.01 A
Stall torque	M_H	21.4 mNm
Friction torque	M_R	0.21 mNm
Speed constant	k_n	454 min⁻¹/V
Back-EMF constant	k_E	2.2 mV/min⁻¹
Torque constant	k_M	21 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	379 min⁻¹/mNm
Rotor inductance	L	450 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.8 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	36.3 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.007 A
Stall torque	M_H	19 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	328 min⁻¹/V
Back-EMF constant	k_E	3.04 mV/min⁻¹
Torque constant	k_M	29.1 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	411 min⁻¹/mNm
Rotor inductance	L	800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.6 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	36 V
Terminal resistance	R	91.4 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.005 A
Stall torque	M_H	16.9 mNm
Friction torque	M_R	0.22 mNm
Speed constant	k_n	219 min⁻¹/V
Back-EMF constant	k_E	4.56 mV/min⁻¹
Torque constant	k_M	43.5 mNm/A
Current constant	k_I	0.023 A/mNm
Slope of n-M curve	Δn/ΔM	462 min⁻¹/mNm
Rotor inductance	L	1800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.3 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	3 V
Terminal resistance	R	0.56 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.066 A
Stall torque	M_H	18.5 mNm
Friction torque	M_R	0.23 mNm
Speed constant	k_n	2730 min⁻¹/V
Back-EMF constant	k_E	0.366 mV/min⁻¹
Torque constant	k_M	3.49 mNm/A
Current constant	k_I	0.286 A/mNm
Slope of n-M curve	Δn/ΔM	438 min⁻¹/mNm
Rotor inductance	L	11 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.4 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	1.94 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8200 min⁻¹
No-load current	I₀	0.029 A
Stall torque	M_H	21.2 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	1380 min⁻¹/V
Back-EMF constant	k_E	0.725 mV/min⁻¹
Torque constant	k_M	6.92 mNm/A
Current constant	k_I	0.144 A/mNm
Slope of n-M curve	Δn/ΔM	387 min⁻¹/mNm
Rotor inductance	L	45 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	78 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	8.71 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.014 A
Stall torque	M_H	19.8 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	657 min⁻¹/V
Back-EMF constant	k_E	1.52 mV/min⁻¹
Torque constant	k_M	14.5 mNm/A
Current constant	k_I	0.069 A/mNm
Slope of n-M curve	Δn/ΔM	394 min⁻¹/mNm
Rotor inductance	L	200 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	17.5 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.01 A
Stall torque	M_H	21.4 mNm
Friction torque	M_R	0.21 mNm
Speed constant	k_n	454 min⁻¹/V
Back-EMF constant	k_E	2.2 mV/min⁻¹
Torque constant	k_M	21 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	379 min⁻¹/mNm
Rotor inductance	L	450 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.8 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	36.3 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.007 A
Stall torque	M_H	19 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	328 min⁻¹/V
Back-EMF constant	k_E	3.04 mV/min⁻¹
Torque constant	k_M	29.1 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	411 min⁻¹/mNm
Rotor inductance	L	800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.6 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	36 V
Terminal resistance	R	91.4 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.005 A
Stall torque	M_H	16.9 mNm
Friction torque	M_R	0.22 mNm
Speed constant	k_n	219 min⁻¹/V
Back-EMF constant	k_E	4.56 mV/min⁻¹
Torque constant	k_M	43.5 mNm/A
Current constant	k_I	0.023 A/mNm
Slope of n-M curve	Δn/ΔM	462 min⁻¹/mNm
Rotor inductance	L	1800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.3 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	3 V
Terminal resistance	R	0.56 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.066 A
Stall torque	M_H	18.5 mNm
Friction torque	M_R	0.23 mNm
Speed constant	k_n	2730 min⁻¹/V
Back-EMF constant	k_E	0.366 mV/min⁻¹
Torque constant	k_M	3.49 mNm/A
Current constant	k_I	0.286 A/mNm
Slope of n-M curve	Δn/ΔM	438 min⁻¹/mNm
Rotor inductance	L	11 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.4 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	1.94 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8200 min⁻¹
No-load current	I₀	0.029 A
Stall torque	M_H	21.2 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	1380 min⁻¹/V
Back-EMF constant	k_E	0.725 mV/min⁻¹
Torque constant	k_M	6.92 mNm/A
Current constant	k_I	0.144 A/mNm
Slope of n-M curve	Δn/ΔM	387 min⁻¹/mNm
Rotor inductance	L	45 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	78 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	8.71 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.014 A
Stall torque	M_H	19.8 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	657 min⁻¹/V
Back-EMF constant	k_E	1.52 mV/min⁻¹
Torque constant	k_M	14.5 mNm/A
Current constant	k_I	0.069 A/mNm
Slope of n-M curve	Δn/ΔM	394 min⁻¹/mNm
Rotor inductance	L	200 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	17.5 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.01 A
Stall torque	M_H	21.4 mNm
Friction torque	M_R	0.21 mNm
Speed constant	k_n	454 min⁻¹/V
Back-EMF constant	k_E	2.2 mV/min⁻¹
Torque constant	k_M	21 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	379 min⁻¹/mNm
Rotor inductance	L	450 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.8 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	36.3 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.007 A
Stall torque	M_H	19 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	328 min⁻¹/V
Back-EMF constant	k_E	3.04 mV/min⁻¹
Torque constant	k_M	29.1 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	411 min⁻¹/mNm
Rotor inductance	L	800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.6 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	36 V
Terminal resistance	R	91.4 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.005 A
Stall torque	M_H	16.9 mNm
Friction torque	M_R	0.22 mNm
Speed constant	k_n	219 min⁻¹/V
Back-EMF constant	k_E	4.56 mV/min⁻¹
Torque constant	k_M	43.5 mNm/A
Current constant	k_I	0.023 A/mNm
Slope of n-M curve	Δn/ΔM	462 min⁻¹/mNm
Rotor inductance	L	1800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.3 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	3 V
Terminal resistance	R	0.56 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.066 A
Stall torque	M_H	18.5 mNm
Friction torque	M_R	0.23 mNm
Speed constant	k_n	2730 min⁻¹/V
Back-EMF constant	k_E	0.366 mV/min⁻¹
Torque constant	k_M	3.49 mNm/A
Current constant	k_I	0.286 A/mNm
Slope of n-M curve	Δn/ΔM	438 min⁻¹/mNm
Rotor inductance	L	11 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.4 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	1.94 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8200 min⁻¹
No-load current	I₀	0.029 A
Stall torque	M_H	21.2 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	1380 min⁻¹/V
Back-EMF constant	k_E	0.725 mV/min⁻¹
Torque constant	k_M	6.92 mNm/A
Current constant	k_I	0.144 A/mNm
Slope of n-M curve	Δn/ΔM	387 min⁻¹/mNm
Rotor inductance	L	45 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	78 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	8.71 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.014 A
Stall torque	M_H	19.8 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	657 min⁻¹/V
Back-EMF constant	k_E	1.52 mV/min⁻¹
Torque constant	k_M	14.5 mNm/A
Current constant	k_I	0.069 A/mNm
Slope of n-M curve	Δn/ΔM	394 min⁻¹/mNm
Rotor inductance	L	200 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.7 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	17.5 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	8100 min⁻¹
No-load current	I₀	0.01 A
Stall torque	M_H	21.4 mNm
Friction torque	M_R	0.21 mNm
Speed constant	k_n	454 min⁻¹/V
Back-EMF constant	k_E	2.2 mV/min⁻¹
Torque constant	k_M	21 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	379 min⁻¹/mNm
Rotor inductance	L	450 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.8 gcm²
Angular acceleration	α_max.	77 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	36.3 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.007 A
Stall torque	M_H	19 mNm
Friction torque	M_R	0.2 mNm
Speed constant	k_n	328 min⁻¹/V
Back-EMF constant	k_E	3.04 mV/min⁻¹
Torque constant	k_M	29.1 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	411 min⁻¹/mNm
Rotor inductance	L	800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.6 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	36 V
Terminal resistance	R	91.4 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.005 A
Stall torque	M_H	16.9 mNm
Friction torque	M_R	0.22 mNm
Speed constant	k_n	219 min⁻¹/V
Back-EMF constant	k_E	4.56 mV/min⁻¹
Torque constant	k_M	43.5 mNm/A
Current constant	k_I	0.023 A/mNm
Slope of n-M curve	Δn/ΔM	462 min⁻¹/mNm
Rotor inductance	L	1800 µH
Mechanical time constant	τ_m	11 ms
Rotor inertia	J	2.3 gcm²
Angular acceleration	α_max.	74 ·10³rad/s²
Thermal resistance	R_th1/R_th2	5 / 20 K/W
Thermal time constant	τ_w1/τ_w2	6.8 / 440 s
Operating temperature range		-30 ... 85 °C
Winding temperature, max.		125 °C
Housing material		steel, black coated
Mass		46 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	9000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Operating Area

Recommended operation areas at nominal voltage 3 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

The nominal voltage (U_N) curve shows the operating point at nominal voltage in the insulated and thermally coupled condition. Any points of operation above the curve at nominal voltage will require a higher operating voltage. Any points below the nominal voltage curve will require less voltage.

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 6 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 12 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 18 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 24 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

Characteristic curves of motor

Operating Area

Recommended operation areas at nominal voltage 36 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

Characteristic curves of motor

3D-CAD Files ZIP

Precision Gearheads

Planetary Gearheads

Series 20/1R