GGM K22-2418 Series BLDC Planetary Geared Motor

GGM K22-2418 Series BLDC Planetary Geared Motor

The GGM K22-2418 BLDC Series is a DC Planetary Geared Motor line combining a BLDC motor with a coaxial planetary gearbox. The gearhead features a Ø22mm mounting face, a Ø4mm output shaft, and four M2 threaded holes, making it suitable for drive assemblies requiring compact dimensions and speed control capabilities.

The series offers two motor options: KB2418U1 DC 12V and KB2418R2 DC 24V. Each motor can be paired with 20 gear ratios from 1/4 to 1/1996, resulting in 40 model combinations based on voltage, speed, and output torque.

In addition to power leads, the motor utilizes PWM signal, FG signal, and CW/CCW control. This is the key difference compared to the K22-2032 brushed DC motor series with the same gearhead size.

Key Features of GGM K22-2418 BLDC Series

Planetary Gearhead Ø22mm

The K22-2418 utilizes a planetary gearhead with a Ø22mm mounting face. The output shaft has a diameter of Ø4mm, a 14mm extension length, and is machined with a D-cut profile.

The front of the gearhead has four M2 threaded holes with a 4mm thread depth, arranged on a PCD Ø18mm bolt circle. The motor body has a diameter of Ø24.4mm and a length of 18.2mm.

Two BLDC Motor Options: 12V and 24V

The series uses two motor models:

• KB2418U1: DC 12V voltage.

• KB2418R2: DC 24V voltage.

The KB2418U1 has a no-load speed of 6,200rpm. The KB2418R2 has a no-load speed of 8,700rpm. Therefore, the same gear ratio will result in different output speeds for the two versions.

20 Gear Ratios

The GGM K22-2418 provides 20 gear ratios from 1/4 to 1/1996. Low ratios are suitable for mechanisms requiring higher output speeds. High ratios provide lower output speeds within the torque limits of the planetary gearhead.

The torque at maximum efficiency reaches 3kgf·cm in many high gear ratio configurations.

Support for PWM, FG, and CW/CCW Control

The motor uses five wires, including power, GND, PWM, FG, and rotation direction control. The FG signal provides 9 pulses per revolution, supporting speed monitoring via an external controller.

Function or direction changes must be performed while the motor is stopped. The applicable speed controller is listed in the catalog as GUN Type.

GGM K22-2418 Series Specifications

GGM KB2418 BLDC Motor Specifications

The values above are motor specifications before integration with the planetary gearhead.

Gear Ratio and Planetary Gearhead Length

Length L is the length of the planetary gearhead section. When designing the mounting position, account for the 18.2mm motor length, the 2.5mm rear section, and the 14mm output shaft length.

GGM K22-2418 BLDC Series Model List

Applications of GGM K22-2418 BLDC Series

The GGM K22-2418 is suitable for drive assemblies requiring small dimensions, speed control, and feedback signals, including:

• Robots and small actuators.

• Testing and measurement equipment.

• Mini feeders or dosing units.

• Rotary mechanisms in desktop machines.

• OEM medical or laboratory equipment.

• Opening/closing mechanisms in automated devices.

• Devices using DC 12V or 24V power sources.

• Drive assemblies requiring PWM speed control.

Practical application suitability should be verified based on voltage, output speed, load torque, duty cycle, and control method.

How to Select GGM K22-2418 BLDC Series

First, determine the power source:

• Select KB2418U1 when using a DC 12V source.

• Select KB2418R2 when using a DC 24V source.

Next, determine the required output speed and select the appropriate gear ratio. The 1/4 to 1/19 ratio group is suitable for high output speeds. The 1/53 to 1/104 group is suitable for balancing speed and torque. Ratios from 1/198 to 1/1996 are suitable for mechanisms requiring lower speeds.

For speed adjustment applications, identify the PWM signaling method and the appropriate GUN Type controller. When speed monitoring is required, the 9 pulses per revolution FG signal can be used.

Mechanical dimensions to check before ordering include:

• Gearhead face diameter Ø22mm.

• D-cut output shaft Ø4mm.

• Shaft length 14mm.

• Four M2 threaded holes on a PCD Ø18mm.

• Gearhead length according to gear ratio.

• Motor diameter Ø24.4mm.

• Lead wire length 200mm.

Notes on Replacing GGM K22-2418

When replacing a GGM K22-2418 geared motor, verify the correct KB2418U1 or KB2418R2 model, power voltage, gear ratio code, and five-wire wiring diagram.

Do not change the rotation direction while the motor is running. CW/CCW function switching must be performed when the motor is stopped.

Gear ratio groups have different planetary gearhead lengths. Therefore, cross-reference the L length, output shaft, mounting hole position, and wire layout space.

The gearhead output shaft rotates in the same direction as the motor, as noted in the catalog.

MDriveTech Provides Genuine GGM K22-2418 BLDC Series

MDriveTech provides the GGM K22-2418 Series BLDC planetary geared motors, supporting verification of voltage, motor model, gear ratio, speed, torque, wiring diagrams, and mounting dimensions according to actual requirements.
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