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YFD545 Brushed DC motor(Plastic back cover)
YFD545 Brushed DC motor(Plastic back cover)
YFD545 Brushed DC motor(Plastic back cover)

Permanent Magnet Brushed DC Motor

YFD545 Brushed DC motor(Plastic back cover)

Motor type:

DC motor

This is a motor that utilizes a rubber back cover to achieve excellent insulation, lightweight and corrosion resistance.

Applications: hair dryers, electric hair dryer brush, electric air pumps, robotic vacuum cleaner, toys, automotive products
  • Technical Parameters
  • Dimensions
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1. Standard Operating Conditions

Rated Voltage

55.0V DC CONSTANT between motor terminals
Direction of Rotatio CCW when viewed from output shaft side

2. Measuring Conditions

Motor Position Motor to be held with shaft horizontally
Power Supply Regulated power  supply which assures unquestionable measurement
Environment Temperature and Humidity The test is made in principle at a temperature between 15℃ and 35℃ and at a relative humidity 75%

3. Electrical Characteristics (at initial stage after 30 seconds run-in)

No Load Current 0.13A max
No Load Speed 9000±10% rpm
No Load Starting Voltage 2.0Vmax
Rated Load Current 0.75±12%A
Rated Load Speed 7120±10% rpm
Rated Load Fan load with size 30x80mm(approximately equivalent to380.0g-cm.)
Reference Characteristic Curve See Motor Performance Curves And Characteristics
Insulation Resistance 10 M ohm(min) (DC:500V) between motor terminal and motor metal housing
Dielectric Strength

AC 500V(50Hz to 60Hz) for one minute between motor terminal and motor metal housing

Vibration value ≤4.9mm/s

4. Mechanical Characteristics

External Apperance See Motor Outline
Shaft End Play 0.05~0.5 mm
Runout of Shaft Extension 0.05mm max

5. Life

Test voltage 55.0V (Regulated DC power supply)
Load Fan load equivalent to 249.0g.cm
Test cycle Duration 30 min on, 30 min  off is cycle
Required test cycle TBD  cycle

6. Noise test

68db(A) max/RMS,with following condition.No load at rated voltage, Set on sponge.Microphone at 30 cm aligned on the motor axis; background noise-level is 30dB(A)Max/RMS.

7. Other Characteristics

Insulation Grade Class B

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