DC-Micromotors
2642W048CR
Graphite Commutation
Key data
- Nominal voltage:
- 12 ... 48 V
- Rated torque up to:
- 31.3 mNm
- No-load speed up to:
- 6370 min⁻¹
- Stall torque up to:
- 148 mNm
- Diameter:
- 26 mm
- Length:
- 42 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
| Productcategory: | DC-Micromotors | |
|---|---|---|
| Productfamily: | FAULHABER CR | |
| Nominal voltage: | UN | 48 V |
| Terminal resistance: | R | 23.8 Ω |
| Efficiency motor, max.: | ηmax | 77 % |
| No-load speed up to: | n0 | 6370 min⁻¹ |
| No-load current: | I0 | 0.0285 A |
| Rated torque up to: | MN | 30.9 mNm |
| Stall torque up to: | MH | 141 mNm |
| Speed constant: | kn | 133 min⁻¹/V |
| Back-EMF constant: | kE | 7.31 mV/min⁻¹ |
| Torque constant: | kM | 71.7 mNm/A |
| Current constant: | kI | 0.014 A/mNm |
| Slope of n-M curve: | 44.3 min⁻¹/mNm | |
| Rotor inductance: | L | 2200 µH |
| Mechanical time constant: | Tm | 5.4 ms |
| Rotor inertia: | J | 11 gcm² |
| Angular acceleration: | αmax. | 120 ·10³rad/s² |
| Thermal resistance Rth1: | Rth1 | 4.9 K/W |
| Thermal resistance Rth2: | Rth2 | 14.8 K/W |
| Thermal resistance (external plastic flange): | Rth2 p | 14 K/W |
| Thermal resistance (external metal flange): | Rth2 m | 1.9 K/W |
| Thermal time constant (winding): | τw1 | 25 s |
| Thermal time constant (housing): | τw2 | 692.5 s |
| Thermal time constant (external plastic flange): | τw2 p | 650 s |
| Thermal time constant (external metal flange): | τw2 m | 89 s |
| Housing material: | steel, nickel plated | |
| Operating temperature, min.: | -30 °C | |
| Operating temperature, max.: | 125 °C | |
| Winding temperature, max.: | 155 °C | |
| Mass: | 114 g | |
| Speed up to: | nmax. | 7000 min⁻¹ |
Operating Area of motor
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 (Rth2 50% reduced).
The nominal voltage (UN) 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.
Motor Characteristic curves
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