What are Brushed Pancake Motors? from Pelonis Technologies, Inc.

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Brushed DC pancake motors, also called printed armature, axial flux, or servodisc motors, are types of servo motors used for motion control, CNC machinery, automotive systems, printing equipment, and other applications. They are compact, economical, and easy to work with.

Pelonis Technologies, Inc. is a leading supplier of brushed DC pancake motors. We also supply AC motors and other motorized motion control solutions, along with heating and cooling components.

Learn more about our GN Series of brushed pancake motors, their applications, and the models available.

Features & Specifications

Pancake motors get their name from their flat, round, wide shape. They feature a stator with a permanent magnet surrounding an armature that is printed with coil windings and a commutator. Graphite or carbon brushes attached to the armature send DC current to the coil. Current runs radially outward from the center to the armature edge, perpendicular to the axial magnetic field (i.e., axial flux). This produces a force that generates torque and causes the motor to turn.

GN Series features include:

DC brushed
Printed armature
Super-flat construction
Rare Earth NdFeB magnets for low-temperature operation (to -20°C, -4°F)
Custom shaft and housing configurations available
Ironless core
No cogging - ultra low velocity ripple and smooth running
Tachometer, encoder, gearbox, and brake options available
Available as a motor kit

Our brushed DC pancake motors are available in four ranges and three sizes, including armature diameters of 9cm, 12cm, and 16cm.

Every GN series motor is available in a parallel winding (designated LR) or low-resistance configuration. These DC pancake motors are best suited for low battery, low voltage, or higher speed applications.

Applications

Pancake motors are used in many types of servo applications that require compact and responsive motors to achieve high levels of control. Motors in the GN Series can replace older KN-series and N-series servo motors from PMI Kollmorgen.

Applications include, but are not limited to, the following: