FAULHABER CXR Series 2657 ... CXR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 2657 ... CXR

Graphite Commutation

Key Features

Nominal voltage:

12 ... 48 V

Rated torque up to:

42.3 mNm

No-load speed up to:

5900 min⁻¹

Stall torque up to:

307 mNm

Diameter:

26 mm

Length:

57 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 2657W012CXR

Series 2657W018CXR

Series 2657W024CXR

Series 2657W030CXR

Series 2657W036CXR

Series 2657W048CXR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	0.721 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	5730 min⁻¹
No-load current	I₀	0.105 A
Stall torque	M_H	307 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	494 min⁻¹/V
Back-EMF constant	k_E	2.024 mV/min⁻¹
Torque constant	k_M	19.3 mNm/A
Current constant	k_I	0.052 A/mNm
Slope of n-M curve	Δn/ΔM	18.4 min⁻¹/mNm
Rotor inductance	L	91 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	180 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	1.72 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	5710 min⁻¹
No-load current	I₀	0.0689 A
Stall torque	M_H	298 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	324 min⁻¹/V
Back-EMF constant	k_E	3.113 mV/min⁻¹
Torque constant	k_M	29.5 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	18.9 min⁻¹/mNm
Rotor inductance	L	212 µH
Mechanical time constant	τ_m	2.9 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	204 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	3 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5860 min⁻¹
No-load current	I₀	0.0526 A
Stall torque	M_H	301 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	247 min⁻¹/V
Back-EMF constant	k_E	4.05 mV/min⁻¹
Torque constant	k_M	38.7 mNm/A
Current constant	k_I	0.026 A/mNm
Slope of n-M curve	Δn/ΔM	19.2 min⁻¹/mNm
Rotor inductance	L	364 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	178 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	30 V
Terminal resistance	R	4.84 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5820 min⁻¹
No-load current	I₀	0.0416 A
Stall torque	M_H	296 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	196 min⁻¹/V
Back-EMF constant	k_E	5.11 mV/min⁻¹
Torque constant	k_M	48.9 mNm/A
Current constant	k_I	0.02 A/mNm
Slope of n-M curve	Δn/ΔM	19.4 min⁻¹/mNm
Rotor inductance	L	581 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	177 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	6.76 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5900 min⁻¹
No-load current	I₀	0.035 A
Stall torque	M_H	302 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	165 min⁻¹/V
Back-EMF constant	k_E	6.07 mV/min⁻¹
Torque constant	k_M	58 mNm/A
Current constant	k_I	0.017 A/mNm
Slope of n-M curve	Δn/ΔM	19.2 min⁻¹/mNm
Rotor inductance	L	819 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	180 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	48 V
Terminal resistance	R	12.7 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5840 min⁻¹
No-load current	I₀	0.0259 A
Stall torque	M_H	292 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	122 min⁻¹/V
Back-EMF constant	k_E	8.205 mV/min⁻¹
Torque constant	k_M	78.4 mNm/A
Current constant	k_I	0.013 A/mNm
Slope of n-M curve	Δn/ΔM	19.7 min⁻¹/mNm
Rotor inductance	L	1490 µH
Mechanical time constant	τ_m	3.5 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	172 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	0.721 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	5730 min⁻¹
No-load current	I₀	0.105 A
Stall torque	M_H	307 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	494 min⁻¹/V
Back-EMF constant	k_E	2.024 mV/min⁻¹
Torque constant	k_M	19.3 mNm/A
Current constant	k_I	0.052 A/mNm
Slope of n-M curve	Δn/ΔM	18.4 min⁻¹/mNm
Rotor inductance	L	91 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	180 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	1.72 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	5710 min⁻¹
No-load current	I₀	0.0689 A
Stall torque	M_H	298 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	324 min⁻¹/V
Back-EMF constant	k_E	3.113 mV/min⁻¹
Torque constant	k_M	29.5 mNm/A
Current constant	k_I	0.034 A/mNm
Slope of n-M curve	Δn/ΔM	18.9 min⁻¹/mNm
Rotor inductance	L	212 µH
Mechanical time constant	τ_m	2.9 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	204 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	3 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5860 min⁻¹
No-load current	I₀	0.0526 A
Stall torque	M_H	301 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	247 min⁻¹/V
Back-EMF constant	k_E	4.05 mV/min⁻¹
Torque constant	k_M	38.7 mNm/A
Current constant	k_I	0.026 A/mNm
Slope of n-M curve	Δn/ΔM	19.2 min⁻¹/mNm
Rotor inductance	L	364 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	178 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	30 V
Terminal resistance	R	4.84 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5820 min⁻¹
No-load current	I₀	0.0416 A
Stall torque	M_H	296 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	196 min⁻¹/V
Back-EMF constant	k_E	5.11 mV/min⁻¹
Torque constant	k_M	48.9 mNm/A
Current constant	k_I	0.02 A/mNm
Slope of n-M curve	Δn/ΔM	19.4 min⁻¹/mNm
Rotor inductance	L	581 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	177 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 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	6.76 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5900 min⁻¹
No-load current	I₀	0.035 A
Stall torque	M_H	302 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	165 min⁻¹/V
Back-EMF constant	k_E	6.07 mV/min⁻¹
Torque constant	k_M	58 mNm/A
Current constant	k_I	0.017 A/mNm
Slope of n-M curve	Δn/ΔM	19.2 min⁻¹/mNm
Rotor inductance	L	819 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	180 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	48 V
Terminal resistance	R	12.7 Ω
Efficiency, max.	η_max.	83 %
No-load speed	n₀	5840 min⁻¹
No-load current	I₀	0.0259 A
Stall torque	M_H	292 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	122 min⁻¹/V
Back-EMF constant	k_E	8.205 mV/min⁻¹
Torque constant	k_M	78.4 mNm/A
Current constant	k_I	0.013 A/mNm
Slope of n-M curve	Δn/ΔM	19.7 min⁻¹/mNm
Rotor inductance	L	1490 µH
Mechanical time constant	τ_m	3.5 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	172 ·10³rad/s²
Thermal resistance	R_th1/R_th2	4 / 14.3 K/W
Thermal time constant	τ_w1/τ_w2	29 / 827.5 s
Operating temperature range		-30 ... 100 °C
Winding temperature, max.		125 °C
Housing material		steel, zinc galvanized and passivated
Mass		156 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	7000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

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).

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 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 30 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

Operating Area

Recommended operation areas at nominal voltage 48 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

Planetary Gearheads

FAULHABER GPT

Series 22GPT

High Torque