How should ball bearing motors be lubricated?

Ball bearing motors are designed with specific lubrication needs to ensure optimal performance and longevity. The correct approach, which involves removing grease plugs and pumping in new grease, is based on the principle that ball bearings require a consistent and adequate supply of lubricant to reduce friction and wear between the moving parts.

Using new grease maintains the properties of lubrication, provides better sealing against contaminants, and helps in dissipating heat generated by the motor’s operation. This method is particularly effective in applications where bearings have been sealed to retain grease and prevent leakage, allowing for easier maintenance without disassembling the entire motor.

Other methods such as using oil instead of grease may not be effective for ball bearings designed to operate with grease, as oils can lead to faster wear or insufficient protection. Cleaning the motor with solvents does not contribute to lubrication; rather, it might remove existing grease, which is counterproductive. Lastly, replacing bearings yearly is not a standard practice unless there is significant wear or damage, as proper lubrication can extend the life of the bearings substantially beyond just one year.