FAULHABER CR Series 2668 ... CR by FAULHABER

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Datasheet

Variants

DC-Micromotors Series 2668 ... CR

Graphite Commutation

Key Features

Nominal voltage:

18 ... 48 V

Rated torque up to:

70 mNm

No-load speed up to:

7900 min⁻¹

Stall torque up to:

660 mNm

Diameter:

26 mm

Length:

68 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 2668W018CR

Series 2668W024CR

Series 2668W036CR

Series 2668W048CR

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	18 V
Terminal resistance	R	0.57 Ω
Efficiency, max.	η_max.	86 %
No-load speed	n₀	7900 min⁻¹
No-load current	I₀	0.105 A
Stall torque	M_H	653 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	448 min⁻¹/V
Back-EMF constant	k_E	2.24 mV/min⁻¹
Torque constant	k_M	21.3 mNm/A
Current constant	k_I	0.047 A/mNm
Slope of n-M curve	Δn/ΔM	12 min⁻¹/mNm
Rotor inductance	L	87 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	27 gcm²
Angular acceleration	α_max.	242 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	1.03 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.078 A
Stall torque	M_H	656 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	331 min⁻¹/V
Back-EMF constant	k_E	3.02 mV/min⁻¹
Torque constant	k_M	28.9 mNm/A
Current constant	k_I	0.035 A/mNm
Slope of n-M curve	Δn/ΔM	11.8 min⁻¹/mNm
Rotor inductance	L	158 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	25 gcm²
Angular acceleration	α_max.	263 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	2.53 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	7500 min⁻¹
No-load current	I₀	0.05 A
Stall torque	M_H	632 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	211 min⁻¹/V
Back-EMF constant	k_E	4.73 mV/min⁻¹
Torque constant	k_M	45.2 mNm/A
Current constant	k_I	0.022 A/mNm
Slope of n-M curve	Δn/ΔM	11.8 min⁻¹/mNm
Rotor inductance	L	390 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	25 gcm²
Angular acceleration	α_max.	253 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	4.23 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	7700 min⁻¹
No-load current	I₀	0.038 A
Stall torque	M_H	660 mNm
Friction torque	M_R	2.2 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	11.6 min⁻¹/mNm
Rotor inductance	L	660 µH
Mechanical time constant	τ_m	3.2 ms
Rotor inertia	J	26 gcm²
Angular acceleration	α_max.	254 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	0.57 Ω
Efficiency, max.	η_max.	86 %
No-load speed	n₀	7900 min⁻¹
No-load current	I₀	0.105 A
Stall torque	M_H	653 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	448 min⁻¹/V
Back-EMF constant	k_E	2.24 mV/min⁻¹
Torque constant	k_M	21.3 mNm/A
Current constant	k_I	0.047 A/mNm
Slope of n-M curve	Δn/ΔM	12 min⁻¹/mNm
Rotor inductance	L	87 µH
Mechanical time constant	τ_m	3.4 ms
Rotor inertia	J	27 gcm²
Angular acceleration	α_max.	242 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	1.03 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	7800 min⁻¹
No-load current	I₀	0.078 A
Stall torque	M_H	656 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	331 min⁻¹/V
Back-EMF constant	k_E	3.02 mV/min⁻¹
Torque constant	k_M	28.9 mNm/A
Current constant	k_I	0.035 A/mNm
Slope of n-M curve	Δn/ΔM	11.8 min⁻¹/mNm
Rotor inductance	L	158 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	25 gcm²
Angular acceleration	α_max.	263 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	2.53 Ω
Efficiency, max.	η_max.	87 %
No-load speed	n₀	7500 min⁻¹
No-load current	I₀	0.05 A
Stall torque	M_H	632 mNm
Friction torque	M_R	2.2 mNm
Speed constant	k_n	211 min⁻¹/V
Back-EMF constant	k_E	4.73 mV/min⁻¹
Torque constant	k_M	45.2 mNm/A
Current constant	k_I	0.022 A/mNm
Slope of n-M curve	Δn/ΔM	11.8 min⁻¹/mNm
Rotor inductance	L	390 µH
Mechanical time constant	τ_m	3.1 ms
Rotor inertia	J	25 gcm²
Angular acceleration	α_max.	253 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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	4.23 Ω
Efficiency, max.	η_max.	88 %
No-load speed	n₀	7700 min⁻¹
No-load current	I₀	0.038 A
Stall torque	M_H	660 mNm
Friction torque	M_R	2.2 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	11.6 min⁻¹/mNm
Rotor inductance	L	660 µH
Mechanical time constant	τ_m	3.2 ms
Rotor inertia	J	26 gcm²
Angular acceleration	α_max.	254 ·10³rad/s²
Thermal resistance	R_th1/R_th2	3 / 8 K/W
Thermal time constant	τ_w1/τ_w2	33 / 600 s
Operating temperature range		-30 ... 125 °C
Winding temperature, max.		155 °C
Housing material		steel, black coated
Mass		189 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	10000 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

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FAULHABER GPT

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