FAULHABER SR-Flat

Series 2607 ... SR

Precious Metal Commutation

Key Features

Nominal voltage:

6 ... 24 V

Rated torque up to:

3.4 mNm

No-load speed up to:

6600 min⁻¹

Stall torque up to:

6.77 mNm

Diameter:

26 mm

Length:

7 mm

Advantages

Extremely flat design. Lengths ranging from 6 mm to 19 mm

4-pole design

Minimal moment of inertia

Integrated spur gearheads of minimal length with high gear ratio are available

Available with integrated optical encoders

Variants:

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance	R	8.2 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	6600 min⁻¹
No-load current	I₀	0.007 A
Stall torque	M_H	6.26 mNm
Friction torque	M_R	0.06 mNm
Speed constant	k_n	1111 min⁻¹/V
Back-EMF constant	k_E	0.9 mV/min⁻¹
Torque constant	k_M	8.59 mNm/A
Current constant	k_I	0.116 A/mNm
Slope of n-M curve	Δn/ΔM	1055 min⁻¹/mNm
Rotor inductance	L	465 µH
Mechanical time constant	τ_m	7.5 ms
Rotor inertia	J	0.68 gcm²
Angular acceleration	α_max.	92 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.7 / 24.45 K/W
Thermal time constant	τ_w1/τ_w2	1.8 / 163 s
Operating temperature range		-25 ... 80 °C
Winding temperature, max.		100 °C
Housing material		plastic
Mass		16.1 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	8000 min⁻¹
Number of pole pairs		2
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance	R	36.5 Ω
Efficiency, max.	η_max.	80 %
No-load speed	n₀	5900 min⁻¹
No-load current	I₀	0.004 A
Stall torque	M_H	6.21 mNm
Friction torque	M_R	0.07 mNm
Speed constant	k_n	500 min⁻¹/V
Back-EMF constant	k_E	2 mV/min⁻¹
Torque constant	k_M	19.09 mNm/A
Current constant	k_I	0.052 A/mNm
Slope of n-M curve	Δn/ΔM	957 min⁻¹/mNm
Rotor inductance	L	2200 µH
Mechanical time constant	τ_m	6.8 ms
Rotor inertia	J	0.68 gcm²
Angular acceleration	α_max.	92 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.7 / 24.45 K/W
Thermal time constant	τ_w1/τ_w2	1.8 / 163 s
Operating temperature range		-25 ... 80 °C
Winding temperature, max.		100 °C
Housing material		plastic
Mass		16.1 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	8000 min⁻¹
Number of pole pairs		2
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	24 V
Terminal resistance	R	128 Ω
Efficiency, max.	η_max.	81 %
No-load speed	n₀	6200 min⁻¹
No-load current	I₀	0.002 A
Stall torque	M_H	6.77 mNm
Friction torque	M_R	0.07 mNm
Speed constant	k_n	261 min⁻¹/V
Back-EMF constant	k_E	3.83 mV/min⁻¹
Torque constant	k_M	36.54 mNm/A
Current constant	k_I	0.027 A/mNm
Slope of n-M curve	Δn/ΔM	917 min⁻¹/mNm
Rotor inductance	L	8400 µH
Mechanical time constant	τ_m	6.5 ms
Rotor inertia	J	0.68 gcm²
Angular acceleration	α_max.	100 ·10³rad/s²
Thermal resistance	R_th1/R_th2	2.7 / 24.45 K/W
Thermal time constant	τ_w1/τ_w2	1.8 / 163 s
Operating temperature range		-25 ... 80 °C
Winding temperature, max.		100 °C
Housing material		plastic
Mass		16.1 g
Direction of rotation		clockwise, viewed from the front face
Speed up to	n_max.	8000 min⁻¹
Number of pole pairs		2
Magnet material		NdFeB

Operating Area

Recommended operation areas at nominal voltage 6 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