7. Is it brushed or brushless?:Considering whether a brushed or brushless motor is better suited for your application will help you decide which is better. Brushless motors are more expensive but have a longer lifespan than brushed motors, which are typically less expensive but need more maintenance.
8. Manufacturer:Pick a planetary gear motor factory that has a solid track record of creating DC planetary gear motors of high quality. Think about things like the warranty, customer service, and the accessibility of replacement parts.
By taking these things into account, you can choose a DC planetary gear motor that will work for your application.