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Serie 3257 ... CR
Serie 3257 ... CR
Serie 3257 ... CR
Serie 3257 ... CR
Serie 3257 ... CR
Serie 3257 ... CR
DC-Micromotors

3257X036CR

Graphite Commutation

Key data

Nominal voltage:
12 ... 48 V
Rated torque up to:
73.1 mNm
No-load speed up to:
6240 min⁻¹
Stall torque up to:
570 mNm
Diameter:
32 mm
Length:
57 mm
More product details
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Available on inquiry

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 36 V
Terminal resistance: R 4.15 Ω
Efficiency motor, max.: ηmax 80 %
No-load speed up to: n0 5680 min⁻¹
No-load current: I0 0.083 A
Rated torque up to: MN 73.1 mNm
Stall torque up to: MH 517 mNm
Speed constant: kn 157 min⁻¹/V
Back-EMF constant: kE 6.4 mV/min⁻¹
Torque constant: kM 61.1 mNm/A
Current constant: kI 0.016 A/mNm
Slope of n-M curve: 10.6 min⁻¹/mNm
Rotor inductance: L 697 µH
Mechanical time constant: Tm 4.7 ms
Rotor inertia: J 42 gcm²
Angular acceleration: αmax. 120 ·10³rad/s²
Thermal resistance Rth1: Rth1 3.4 K/W
Thermal resistance Rth2: Rth2 10.3 K/W
Thermal resistance (external plastic flange): Rth2 p 9.8 K/W
Thermal resistance (external metal flange): Rth2 m 1.5 K/W
Thermal time constant (winding): τw1 36 s
Thermal time constant (housing): τw2 1016.2 s
Thermal time constant (external plastic flange): τw2 p 970 s
Thermal time constant (external metal flange): τw2 m 150 s
Housing material: steel, nickel plated
Operating temperature, min.: -30 °C
Operating temperature, max.: 125 °C
Winding temperature, max.: 155 °C
Mass: 242 g
Speed up to: nmax. 7000 min⁻¹