There s two parts to lubricating the garage door rollers.
How to grease garage door wheels.
Metal rollers are how your garage door travels up and down.
If your rollers feature nylon wheels be sure to lubricate the rollers without getting any lubricant on the nylon material.
The metal shaft that slides in the bracket on the door itself and the ball bearings on the roller wheel.
All metal rollers don t require as much precision but make sure to wipe away any excess lubricant to prevent it from dripping on the garage floor or your car.
To lubricate the metal shaft spray some grease at the edge of both sides of the bracket as shown below.
While metal rollers require less precision it s a good idea to protect your floor and your car from any drips along the way.
Then clean the garage door tracks with a damp rag to get rid of any dirt and debris.