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DC Motors and Gear Motors

DC motors are generally thought of for mobile applications or where low voltage is required for safety requirements. They can also excel in other areas of machine design thanks to ever increasing performance and control options from the likes of our Electromen DC motor drives.

Brush wear used to be a big problem for DC motors when used in continuous duty applications, and although we generally advise using brushless or other motor technologies for high duties, longer brush life is possible in high quality motors like those offered from Crouzets DC Mind programme.

With many gearbox options or motor only, OEM have a large selection as can be seen below.
Common applications:
  • Pump drive on portable machines - battery powered and high start torque.
  • Food machinery – low voltage to comply with HSE rules.
  • Low duty machine requiring high start torque - DC motors produce up to 3x nominal torque at start
Doga 169 DC motors

DC Motor Only

Motors without gearboxes are available for customer specific applications, where a standard gearbox is not required or suitable. DC motors are generally 12, 24 or 48Vdc and offer inherently high levels of starting torque, they can be controlled and driven through PWM drives for speed, torque, direction and positional control. Our Electromen range of Brushed DC Motor Drives offer many flexible and cost effective options with respect to this.
Minimotor PACE DC motor with inine gearbox

DC Motor with Inline Gearbox

In line gear-boxes generally feature planetary or spur gear. Planetary offer central drive and spur gear-boxes generally have the output shaft off centre to allow for the gear interaction. Both have their uses. Planetary is normally the most eficient and delivers the largest torque for a given size, where as spur gear-boxes are slightly less efficient and usually quieter by design.
Doga 258 DC wiper motor with right angle gearbox

DC Motor with Right Angle Gearbox

Right angle gearboxes allow for compact overall machine packaging, with some featuring a hollow through shaft for ease of instalation and options for through shafts. Whilst usually quieter than other types of gearboxes, the right angle worm gear box is generally less efficient and requires more motor power for a given torque in comparison with in-line gearboxes. It is also not always a given that right angle gearboxes will have full self locking without power. If the products description does not suggest so, please ask our motors team for more information if this is a requirement.

DC wiper motor with integrated drive

The brushed DC motors in this section include an integrated drive with communication using CANopen (CiA301 / CiA302), for this reason they are well suited to deployment in vehicle applications. Right angle gearboxes allow for compact overall machine packaging and simplified installation. Typically quieter than other types of gearboxes, they are however less efficient and require more motor power for a given torque in comparison with in-line gearbox types. It is also not always a given that right angle gearboxes will have full self locking without power. If the products description does not suggest so, please ask our motors team for more information if this is a requirement.
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