FAULHABER CR Series 3272 ... CR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 3272 ... CR

Graphite Commutation

Key Features

Nominal voltage:

12 ... 48 V

Rated torque up to:

125 mNm

No-load speed up to:

5870 min⁻¹

Stall torque up to:

1250 mNm

Diameter:

32 mm

Length:

72 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 3272G012CR

Series 3272G018CR

Series 3272G024CR

Series 3272G036CR

Series 3272G048CR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	0.205 Ω
Efficiency, max.	η_max.	85 %
No-load speed	n₀	5370 min⁻¹
No-load current	I₀	0.192 A
Stall torque	M_H	1160 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	459 min⁻¹/V
Back-EMF constant	k_E	2.18 mV/min⁻¹
Torque constant	k_M	20.8 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	4.52 min⁻¹/mNm
Rotor inductance	L	46.2 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	67 gcm²
Angular acceleration	α_max.	178 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	12 V
Terminal resistance	R	0.205 Ω
Efficiency, max.	η_max.	85 %
No-load speed	n₀	5370 min⁻¹
No-load current	I₀	0.192 A
Stall torque	M_H	1160 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	459 min⁻¹/V
Back-EMF constant	k_E	2.18 mV/min⁻¹
Torque constant	k_M	20.8 mNm/A
Current constant	k_I	0.048 A/mNm
Slope of n-M curve	Δn/ΔM	4.52 min⁻¹/mNm
Rotor inductance	L	46.2 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	67 gcm²
Angular acceleration	α_max.	178 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	0.418 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5780 min⁻¹
No-load current	I₀	0.135 A
Stall torque	M_H	1230 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	324 min⁻¹/V
Back-EMF constant	k_E	3.09 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	4.59 min⁻¹/mNm
Rotor inductance	L	92.7 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	60 gcm²
Angular acceleration	α_max.	204 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	0.418 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5780 min⁻¹
No-load current	I₀	0.135 A
Stall torque	M_H	1230 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	324 min⁻¹/V
Back-EMF constant	k_E	3.09 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	4.59 min⁻¹/mNm
Rotor inductance	L	92.7 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	60 gcm²
Angular acceleration	α_max.	204 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	0.82 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5490 min⁻¹
No-load current	I₀	0.0958 A
Stall torque	M_H	1190 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	229 min⁻¹/V
Back-EMF constant	k_E	4.35 mV/min⁻¹
Torque constant	k_M	41.6 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	4.52 min⁻¹/mNm
Rotor inductance	L	185 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	63 gcm²
Angular acceleration	α_max.	189 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	0.82 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	5490 min⁻¹
No-load current	I₀	0.0958 A
Stall torque	M_H	1190 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	229 min⁻¹/V
Back-EMF constant	k_E	4.35 mV/min⁻¹
Torque constant	k_M	41.6 mNm/A
Current constant	k_I	0.024 A/mNm
Slope of n-M curve	Δn/ΔM	4.52 min⁻¹/mNm
Rotor inductance	L	185 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	63 gcm²
Angular acceleration	α_max.	189 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	1.67 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5870 min⁻¹
No-load current	I₀	0.0695 A
Stall torque	M_H	1250 mNm
Friction torque	M_R	4 mNm
Speed constant	k_n	162 min⁻¹/V
Back-EMF constant	k_E	6.18 mV/min⁻¹
Torque constant	k_M	59 mNm/A
Current constant	k_I	0.017 A/mNm
Slope of n-M curve	Δn/ΔM	4.59 min⁻¹/mNm
Rotor inductance	L	371 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	62 gcm²
Angular acceleration	α_max.	202 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	1.67 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5870 min⁻¹
No-load current	I₀	0.0695 A
Stall torque	M_H	1250 mNm
Friction torque	M_R	4 mNm
Speed constant	k_n	162 min⁻¹/V
Back-EMF constant	k_E	6.18 mV/min⁻¹
Torque constant	k_M	59 mNm/A
Current constant	k_I	0.017 A/mNm
Slope of n-M curve	Δn/ΔM	4.59 min⁻¹/mNm
Rotor inductance	L	371 µH
Mechanical time constant	τ_m	3 ms
Rotor inertia	J	62 gcm²
Angular acceleration	α_max.	202 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	3.35 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5550 min⁻¹
No-load current	I₀	0.0479 A
Stall torque	M_H	1180 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	115 min⁻¹/V
Back-EMF constant	k_E	8.7 mV/min⁻¹
Torque constant	k_M	83.3 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	4.61 min⁻¹/mNm
Rotor inductance	L	739 µH
Mechanical time constant	τ_m	2.9 ms
Rotor inertia	J	60 gcm²
Angular acceleration	α_max.	196 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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	3.35 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	5550 min⁻¹
No-load current	I₀	0.0479 A
Stall torque	M_H	1180 mNm
Friction torque	M_R	3.9 mNm
Speed constant	k_n	115 min⁻¹/V
Back-EMF constant	k_E	8.7 mV/min⁻¹
Torque constant	k_M	83.3 mNm/A
Current constant	k_I	0.012 A/mNm
Slope of n-M curve	Δn/ΔM	4.61 min⁻¹/mNm
Rotor inductance	L	739 µH
Mechanical time constant	τ_m	2.9 ms
Rotor inertia	J	60 gcm²
Angular acceleration	α_max.	196 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.9 / 8.9 K/W
Thermal time constant	τ_w1/τ_w2	50 / 1091.1 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, nickel plated
Mass		312 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 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

Precision Gearheads

Planetary Gearheads

Series 32/3R