FAULHABER CXR Series 1741 ... CXR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 1741 ... CXR

Graphite Commutation

Key Features

Nominal voltage:

6 ... 24 V

Rated torque up to:

9.19 mNm

No-load speed up to:

7630 min⁻¹

Stall torque up to:

31.1 mNm

Diameter:

17 mm

Length:

41.2 mm

Advantages

Highly dynamic performance due to a low rotor inertia

Shockproof all-steel housing with corrosion-resistant coating

Powerful rare-earth magnet

Wide operating temperature range: -30 °C to +100 °C (optional -55 °C)

Durable graphite commutation

No cogging

Very high power density

Variants:

Series 1741U006CXR

Series 1741U012CXR

Series 1741U018CXR

Series 1741U024CXR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	1.28 Ω
Efficiency, max.	η_max.	73 %
No-load speed	n₀	7130 min⁻¹
No-load current	I₀	0.055 A
Stall torque	M_H	31.1 mNm
Friction torque	M_R	0.4 mNm
Speed constant	k_n	1300 min⁻¹/V
Back-EMF constant	k_E	0.768 mV/min⁻¹
Torque constant	k_M	7.33 mNm/A
Current constant	k_I	0.136 A/mNm
Slope of n-M curve	Δn/ΔM	228 min⁻¹/mNm
Rotor inductance	L	35.2 µH
Mechanical time constant	τ_m	4.3 ms
Rotor inertia	J	1.8 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	7.2 / 25.1 K/W
Thermal time constant	τ_w1/τ_w2	9.8 / 405.3 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		45 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	5.72 Ω
Efficiency, max.	η_max.	75 %
No-load speed	n₀	7630 min⁻¹
No-load current	I₀	0.0282 A
Stall torque	M_H	28.3 mNm
Friction torque	M_R	0.4 mNm
Speed constant	k_n	668 min⁻¹/V
Back-EMF constant	k_E	1.496 mV/min⁻¹
Torque constant	k_M	14.3 mNm/A
Current constant	k_I	0.07 A/mNm
Slope of n-M curve	Δn/ΔM	268 min⁻¹/mNm
Rotor inductance	L	134 µH
Mechanical time constant	τ_m	4.5 ms
Rotor inertia	J	1.6 gcm²
Angular acceleration	α_max.	175 ·10³rad/s²
Thermal resistance	R_th1/R_th2	7.2 / 25.1 K/W
Thermal time constant	τ_w1/τ_w2	9.8 / 405.3 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		45 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	14.7 Ω
Efficiency, max.	η_max.	75 %
No-load speed	n₀	7300 min⁻¹
No-load current	I₀	0.0177 A
Stall torque	M_H	26.6 mNm
Friction torque	M_R	0.4 mNm
Speed constant	k_n	420 min⁻¹/V
Back-EMF constant	k_E	2.378 mV/min⁻¹
Torque constant	k_M	22.7 mNm/A
Current constant	k_I	0.044 A/mNm
Slope of n-M curve	Δn/ΔM	273 min⁻¹/mNm
Rotor inductance	L	338 µH
Mechanical time constant	τ_m	4.4 ms
Rotor inertia	J	1.5 gcm²
Angular acceleration	α_max.	174 ·10³rad/s²
Thermal resistance	R_th1/R_th2	7.2 / 25.1 K/W
Thermal time constant	τ_w1/τ_w2	9.8 / 405.3 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		45 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	26.4 Ω
Efficiency, max.	η_max.	76 %
No-load speed	n₀	7320 min⁻¹
No-load current	I₀	0.0132 A
Stall torque	M_H	26.6 mNm
Friction torque	M_R	0.4 mNm
Speed constant	k_n	314 min⁻¹/V
Back-EMF constant	k_E	3.185 mV/min⁻¹
Torque constant	k_M	30.4 mNm/A
Current constant	k_I	0.033 A/mNm
Slope of n-M curve	Δn/ΔM	273 min⁻¹/mNm
Rotor inductance	L	606 µH
Mechanical time constant	τ_m	4.4 ms
Rotor inertia	J	1.5 gcm²
Angular acceleration	α_max.	174 ·10³rad/s²
Thermal resistance	R_th1/R_th2	7.2 / 25.1 K/W
Thermal time constant	τ_w1/τ_w2	9.8 / 405.3 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		45 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 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).

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 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

3D-CAD Files ZIP

Precision Gearheads

Planetary Gearheads

Series 15/10