FAULHABER CR Series 2657 ... CR by FAULHABER

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Datasheet

Variants

FAULHABER CR

Series 2657 ... CR

Graphite Commutation

Key Features

Nominal voltage:

12 ... 48 V

Rated torque up to:

51 mNm

No-load speed up to:

6480 min⁻¹

Stall torque up to:

286 mNm

Diameter:

26 mm

Length:

57 mm

Advantages

Best dynamic performance due to a low rotor inertia

Shockproof all-steel housing with corrosion-resistant coating

Powerful rare-earth magnet

Extremely wide operating temperature range -30 °C to 125 °C (optionally -55 °C, winding up to 155 °C)

Durable graphite commutation

No cogging

Highest power density

Variants:

Series 2657W012CR

Series 2657W018CR

Series 2657W024CR

Series 2657W036CR

Series 2657W048CR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	0.71 Ω
Efficiency, max.	η_max.	84 %
No-load speed	n₀	6300 min⁻¹
No-load current	I₀	0.115 A
Stall torque	M_H	278 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	552 min⁻¹/V
Back-EMF constant	k_E	1.81 mV/min⁻¹
Torque constant	k_M	17.3 mNm/A
Current constant	k_I	0.058 A/mNm
Slope of n-M curve	Δn/ΔM	22.7 min⁻¹/mNm
Rotor inductance	L	95 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	1.7 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	6300 min⁻¹
No-load current	I₀	0.077 A
Stall torque	M_H	269 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	363 min⁻¹/V
Back-EMF constant	k_E	2.75 mV/min⁻¹
Torque constant	k_M	26.3 mNm/A
Current constant	k_I	0.038 A/mNm
Slope of n-M curve	Δn/ΔM	23.5 min⁻¹/mNm
Rotor inductance	L	210 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	2.84 Ω
Efficiency, max.	η_max.	85 %
No-load speed	n₀	6400 min⁻¹
No-load current	I₀	0.058 A
Stall torque	M_H	286 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	274 min⁻¹/V
Back-EMF constant	k_E	3.65 mV/min⁻¹
Torque constant	k_M	34.8 mNm/A
Current constant	k_I	0.029 A/mNm
Slope of n-M curve	Δn/ΔM	22.4 min⁻¹/mNm
Rotor inductance	L	380 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	6.78 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	6480 min⁻¹
No-load current	I₀	0.039 A
Stall torque	M_H	273 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	182 min⁻¹/V
Back-EMF constant	k_E	5.51 mV/min⁻¹
Torque constant	k_M	52.6 mNm/A
Current constant	k_I	0.019 A/mNm
Slope of n-M curve	Δn/ΔM	23.4 min⁻¹/mNm
Rotor inductance	L	850 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	12.5 Ω
Efficiency, max.	η_max.	84 %
No-load speed	n₀	6400 min⁻¹
No-load current	I₀	0.028 A
Stall torque	M_H	265 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	136 min⁻¹/V
Back-EMF constant	k_E	7.37 mV/min⁻¹
Torque constant	k_M	70.4 mNm/A
Current constant	k_I	0.014 A/mNm
Slope of n-M curve	Δn/ΔM	24.2 min⁻¹/mNm
Rotor inductance	L	1550 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	15 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	0.71 Ω
Efficiency, max.	η_max.	84 %
No-load speed	n₀	6300 min⁻¹
No-load current	I₀	0.115 A
Stall torque	M_H	278 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	552 min⁻¹/V
Back-EMF constant	k_E	1.81 mV/min⁻¹
Torque constant	k_M	17.3 mNm/A
Current constant	k_I	0.058 A/mNm
Slope of n-M curve	Δn/ΔM	22.7 min⁻¹/mNm
Rotor inductance	L	95 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	1.7 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	6300 min⁻¹
No-load current	I₀	0.077 A
Stall torque	M_H	269 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	363 min⁻¹/V
Back-EMF constant	k_E	2.75 mV/min⁻¹
Torque constant	k_M	26.3 mNm/A
Current constant	k_I	0.038 A/mNm
Slope of n-M curve	Δn/ΔM	23.5 min⁻¹/mNm
Rotor inductance	L	210 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	2.84 Ω
Efficiency, max.	η_max.	85 %
No-load speed	n₀	6400 min⁻¹
No-load current	I₀	0.058 A
Stall torque	M_H	286 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	274 min⁻¹/V
Back-EMF constant	k_E	3.65 mV/min⁻¹
Torque constant	k_M	34.8 mNm/A
Current constant	k_I	0.029 A/mNm
Slope of n-M curve	Δn/ΔM	22.4 min⁻¹/mNm
Rotor inductance	L	380 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	17 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	6.78 Ω
Efficiency, max.	η_max.	82 %
No-load speed	n₀	6480 min⁻¹
No-load current	I₀	0.039 A
Stall torque	M_H	273 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	182 min⁻¹/V
Back-EMF constant	k_E	5.51 mV/min⁻¹
Torque constant	k_M	52.6 mNm/A
Current constant	k_I	0.019 A/mNm
Slope of n-M curve	Δn/ΔM	23.4 min⁻¹/mNm
Rotor inductance	L	850 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	16 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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	12.5 Ω
Efficiency, max.	η_max.	84 %
No-load speed	n₀	6400 min⁻¹
No-load current	I₀	0.028 A
Stall torque	M_H	265 mNm
Friction torque	M_R	2 mNm
Speed constant	k_n	136 min⁻¹/V
Back-EMF constant	k_E	7.37 mV/min⁻¹
Torque constant	k_M	70.4 mNm/A
Current constant	k_I	0.014 A/mNm
Slope of n-M curve	Δn/ΔM	24.2 min⁻¹/mNm
Rotor inductance	L	1550 µH
Mechanical time constant	τ_m	3.9 ms
Rotor inertia	J	15 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 9 K/W
Thermal time constant	τ_w1/τ_w2	10 / 580 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
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 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

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