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Isnt DC motor the same as gear motor? Because what is the use of dc motor without gears?

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  • \$\begingroup\$ What is the use of motor without gears? Fans, propellers, lots of other things; I answer. \$\endgroup\$ Jan 24, 2014 at 2:09

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A DC motor is not the same as a "gear motor" - a "gear motor" may be an AC or DC motor coupled with a gearbox or transmission. A gear motor adds mechanical gears to alter the speed/torque of the motor for an application. Usually such an addition is to reduce speed and increase torque. A DC motor without gears is useful in many applications, for example the simple fan. Contrast that with the motor that operates the turntable in your microwave, a gearbox there reduces the speed so your food isn't thrown against the interior wall.

For more information, check the Wikipedia on DC Motor.

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  • \$\begingroup\$ So basically a gear coupled dc motor is a gear motor and it uses the same battery pack as a dc motor wud have used? \$\endgroup\$
    – hikari
    Jan 24, 2014 at 2:13
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    \$\begingroup\$ Sure, there's no reason the motor driving a gearbox has to necessarily be different. Obviously it must meet the requirements of the gearbox plus the load together. \$\endgroup\$
    – JYelton
    Jan 24, 2014 at 2:57
  • \$\begingroup\$ @user35997 A gear coupled DC motor, a gear coupled BLDC motor, or a gear coupled AC motor: Those are all "gear motors". That term is merely a simplification and generalization, especially for the hobbyist / DIY community, to insulate them from nitty gritty details. \$\endgroup\$ Jan 25, 2014 at 9:55

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