100RPM Johnson gear motor:

A gear motor is a type of electric motor integrated with a gearbox to provide mechanical advantage and control the speed of the output shaft.

Here are a few things you might want to know or consider:

1. Application: Gear motors are commonly used in various applications where controlled and reduced speed is required. The 100 RPM speed suggests that it is suitable for applications that require a relatively slow rotational speed.
2. Torque: The torque output of the motor is also crucial, especially when considering the specific application. Higher torque is generally associated with slower speeds.
3. Voltage and Power: Ensure that the voltage and power requirements of the gear motor match the electrical specifications of your system or project.
4. Mounting: Consider the mounting options and dimensions to ensure compatibility with your mechanical setup.
5. Direction of Rotation: Confirm the direction of rotation (clockwise or counterclockwise) of the gear motor, as this can be important depending on your application.
6. Duty Cycle: Some motors are designed for continuous operation, while others may have specific duty cycle limitations. Check the manufacturer's specifications for details.
7. Quality and Brand: Consider the reputation of the manufacturer or brand. Reliable manufacturers often provide better-quality products.
8. Environmental Conditions: Ensure that the gear motor can withstand the environmental conditions of its intended application (e.g., temperature, humidity, dust).