FAULHABER CR Series 3890 ... CR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 3890 ... CR

Graphite Commutation

Key Features

Nominal voltage:

18 ... 48 V

Rated torque up to:

224 mNm

No-load speed up to:

5500 min⁻¹

Stall torque up to:

2911 mNm

Diameter:

38 mm

Length:

90 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 3890H018CR

Series 3890H024CR

Series 3890H036CR

Series 3890H048CR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	0.21 Ω
Efficiency, max.	η_max.	86 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.323 A
Stall torque	M_H	2642 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	300 min⁻¹/V
Back-EMF constant	k_E	3.332 mV/min⁻¹
Torque constant	k_M	31.82 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	2 min⁻¹/mNm
Rotor inductance	L	60 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	161 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.36 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.242 A
Stall torque	M_H	2760 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	225 min⁻¹/V
Back-EMF constant	k_E	4.443 mV/min⁻¹
Torque constant	k_M	42.43 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.9 min⁻¹/mNm
Rotor inductance	L	110 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	168 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.78 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.161 A
Stall torque	M_H	2887 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	150 min⁻¹/V
Back-EMF constant	k_E	6.665 mV/min⁻¹
Torque constant	k_M	63.65 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	240 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	169 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	1.38 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5500 min⁻¹
No-load current	I₀	0.121 A
Stall torque	M_H	2911 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	112 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.86 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	430 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.21 Ω
Efficiency, max.	η_max.	86 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.323 A
Stall torque	M_H	2642 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	300 min⁻¹/V
Back-EMF constant	k_E	3.332 mV/min⁻¹
Torque constant	k_M	31.82 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	2 min⁻¹/mNm
Rotor inductance	L	60 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	161 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.36 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.242 A
Stall torque	M_H	2760 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	225 min⁻¹/V
Back-EMF constant	k_E	4.443 mV/min⁻¹
Torque constant	k_M	42.43 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.9 min⁻¹/mNm
Rotor inductance	L	110 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	168 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.78 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.161 A
Stall torque	M_H	2887 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	150 min⁻¹/V
Back-EMF constant	k_E	6.665 mV/min⁻¹
Torque constant	k_M	63.65 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	240 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	169 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	1.38 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5500 min⁻¹
No-load current	I₀	0.121 A
Stall torque	M_H	2911 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	112 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.86 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	430 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.21 Ω
Efficiency, max.	η_max.	86 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.323 A
Stall torque	M_H	2642 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	300 min⁻¹/V
Back-EMF constant	k_E	3.332 mV/min⁻¹
Torque constant	k_M	31.82 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	2 min⁻¹/mNm
Rotor inductance	L	60 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	161 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.36 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.242 A
Stall torque	M_H	2760 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	225 min⁻¹/V
Back-EMF constant	k_E	4.443 mV/min⁻¹
Torque constant	k_M	42.43 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.9 min⁻¹/mNm
Rotor inductance	L	110 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	164 gcm²
Angular acceleration	α_max.	168 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	0.78 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5400 min⁻¹
No-load current	I₀	0.161 A
Stall torque	M_H	2887 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	150 min⁻¹/V
Back-EMF constant	k_E	6.665 mV/min⁻¹
Torque constant	k_M	63.65 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	240 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	169 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 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	1.38 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5500 min⁻¹
No-load current	I₀	0.121 A
Stall torque	M_H	2911 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	112 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.86 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.8 min⁻¹/mNm
Rotor inductance	L	430 µH
Mechanical time constant	τ_m	3.3 ms
Rotor inertia	J	171 gcm²
Angular acceleration	α_max.	170 ·10³rad/s²
Thermal resistance	R_th1/R_th2	1.9 / 4.2 K/W
Thermal time constant	τ_w1/τ_w2	58 / 910 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		550 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	6000 min⁻¹
Number of pole pairs		1
Magnet material		NdFeB

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).

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 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

Precision Gearheads

Planetary Gearheads

Series 38/1