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:

222 mNm

No-load speed up to:

5540 min⁻¹

Stall torque up to:

2910 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	5440 min⁻¹
No-load current	I₀	0.327 A
Stall torque	M_H	2640 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	31.8 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	1.98 min⁻¹/mNm
Rotor inductance	L	60.6 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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.	86 %
No-load speed	n₀	5480 min⁻¹
No-load current	I₀	0.245 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	42.4 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.91 min⁻¹/mNm
Rotor inductance	L	108 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5520 min⁻¹
No-load current	I₀	0.164 A
Stall torque	M_H	2890 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	63.7 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.84 min⁻¹/mNm
Rotor inductance	L	242 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5540 min⁻¹
No-load current	I₀	0.123 A
Stall torque	M_H	2910 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	113 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.9 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.83 min⁻¹/mNm
Rotor inductance	L	431 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5440 min⁻¹
No-load current	I₀	0.327 A
Stall torque	M_H	2640 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	31.8 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	1.98 min⁻¹/mNm
Rotor inductance	L	60.6 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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.	86 %
No-load speed	n₀	5480 min⁻¹
No-load current	I₀	0.245 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	42.4 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.91 min⁻¹/mNm
Rotor inductance	L	108 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5520 min⁻¹
No-load current	I₀	0.164 A
Stall torque	M_H	2890 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	63.7 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.84 min⁻¹/mNm
Rotor inductance	L	242 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5540 min⁻¹
No-load current	I₀	0.123 A
Stall torque	M_H	2910 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	113 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.9 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.83 min⁻¹/mNm
Rotor inductance	L	431 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5440 min⁻¹
No-load current	I₀	0.327 A
Stall torque	M_H	2640 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	31.8 mNm/A
Current constant	k_I	0.031 A/mNm
Slope of n-M curve	Δn/ΔM	1.98 min⁻¹/mNm
Rotor inductance	L	60.6 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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.	86 %
No-load speed	n₀	5480 min⁻¹
No-load current	I₀	0.245 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	42.4 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	1.91 min⁻¹/mNm
Rotor inductance	L	108 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5520 min⁻¹
No-load current	I₀	0.164 A
Stall torque	M_H	2890 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	63.7 mNm/A
Current constant	k_I	0.016 A/mNm
Slope of n-M curve	Δn/ΔM	1.84 min⁻¹/mNm
Rotor inductance	L	242 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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	5540 min⁻¹
No-load current	I₀	0.123 A
Stall torque	M_H	2910 mNm
Friction torque	M_R	10 mNm
Speed constant	k_n	113 min⁻¹/V
Back-EMF constant	k_E	8.887 mV/min⁻¹
Torque constant	k_M	84.9 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	1.83 min⁻¹/mNm
Rotor inductance	L	431 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	2.1 / 6.6 K/W
Thermal time constant	τ_w1/τ_w2	66 / 1427.6 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
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

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.

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 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 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).

3D-CAD Files ZIP

Precision Gearheads

Planetary Gearheads

Series 38/1