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YFD 5512 Brushed DC motor(with design patents)
YFD 5512 Brushed DC motor(with design patents)
YFD 5512 Brushed DC motor(with design patents)

Permanent Magnet Brushed DC Motor

YFD 5512 Brushed DC motor(with design patents)

Motor type:

DC motor

The permanent magnet DC brushed motor achieves both improved maintenance convenience and service life through the innovative combination of an extended body design and a replaceable carbon brush structure.

Applications: Power tools
  • Technical Parameters
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1. Standard Operating Conditions

Rated Voltage

120.0 VAC Full wave rectification
Direction of Rotation CCW With +ve voltage applied to +ve terminal , viewed from output

2. Measuring Conditions

Motor Position Motor to be held with shaft horizontally
Power Supply Regulated AC or DC power supply
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 0.28A max
NO Load Power 25.5  W max
No Load Speed 20600±10% rpm
Rated Load Current 1.37±12%A
Rated Load Power 145.4±12%  W
Rated Load Speed 14600±10% rpm
Rated Load Fan load with size 25x66.5 mm(approximately equivalent to /g-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
Hi-Pot Test At 1250VAC/5mA(50Hz to 60Hz) for one minute,between motor terminal and motor housing
Vibration value ≤ 3.5mm/s
Spark rating test ≤ 1½

4. Mechanical Characteristics

External Apperance See Motor Outline
Shaft End Play 0.05~0.5 mm
Runout of Shaft Extension 0.05 mm max.at 2/3 of output shaft side and measured by dial gauge
Motor Weight208  g (Approx)

5. Life test

Working condition Intermittent(Bare motor only)
Test voltage 125.0VAC Full wave rectification
Load 145.0 W max
Test cycle Duration TBD  hour min(on time).After life tested free load & fan load curren  are reference only

6. Environmental Test

High temperature test Storing the motor for 100 hours at +90℃ And then 24 hours at room
低温测试 Storing the motor for 100 hours at -40℃ And then 24 hours at room

7. 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.

8. Other Characteristics

Insulation Grade Class B
ECP Requirement Motor conform to 2011/65/EU RoHS Directive

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