How to Clean a Logitech MX ERGO Trackball and Ball Bearings

Step-by-step instructions

Step 1: Separate mechanical drag from connection trouble

Before switching off, notice whether the ball itself feels rough or whether it rolls smoothly while the pointer hesitates. Those observations lead to different next steps. Mechanical drag can justify cleaning the ball and its supports; a smooth ball with delayed cursor movement may involve the connection or software. Do not change multiple pointer settings while also cleaning, because that makes the result harder to interpret. Turn the mouse off and disconnect the charging cable before handling damp cleaning materials.

Step 2: Remove the magnetic plate without opening the shell

Turn the trackball over above a towel and gently pull the metal plate away. It is held magnetically, not by a screw that must be removed for routine cleaning. Set it aside with its rubber surface protected from grit. Locate the designated opening underneath the ball. Do not peel the feet, remove the shell screws, or probe another opening because a generic mouse-repair video shows those steps. This maintenance task stops at the components Logitech designed the owner to remove.

Step 3: Eject the ball and contain it safely

Support the housing so the ball can come out into your hand or the towel-lined tray. Use the blunt back of a pen through the underside opening, as Logitech directs. Avoid the pointed writing end or a sharp metal pick. Work gently and keep the ball from dropping onto a hard floor. If something does not match the illustrated mechanism, stop and confirm the model. Do not lever around the exposed edge of the ball and scratch the cup.

Step 4: Wipe the ball and visible white supports

Use a soft, lint-free cloth to remove dust from the ball and the white bearing surfaces inside the cup. Rotate the loose ball in your hand to inspect its whole surface. Remove accumulated lint gently without prying at the small supports or polishing away material. Keep cloth fibers out of the optical opening and avoid scraping the sensor window. These supports are not a reason to fill the cup with oil; the goal is clean contact surfaces, not a lubricated reservoir.

Step 5: Clean the housing with restrained moisture

Lightly dampen a clean cloth with water and wipe the palm area, buttons, and accessible outer surfaces. Keep liquid away from openings and the charging connector; never spray directly onto the mouse. Follow with a dry cloth where needed. Logitech's article includes a limited note about alcohol and antibacterial wipes with a discreet compatibility test, but a water-dampened wipe is the simple starting point. Do not interpret that note as permission to flood switches, soak the ball cup, or apply an abrasive solvent.

Step 6: Dry and refit the ball and plate

Allow cleaned surfaces to dry, then place the ball back into its cup. Reattach the metal plate with the rubber side facing the desk and confirm that it sits properly. Inspect the desk surface too: grit under the base can make the whole unit rock or move. Turn the ball gently before reconnecting anything. If it catches at one repeatable point, inspect for residual debris or ball damage rather than pressing harder or attempting to reshape the supports.

Step 7: Test one variable at a time

Reconnect only once dry and switch the MX ERGO on. Test normal pointer movement using the same connection and settings as before cleaning. If the ball now feels smooth but the pointer still stutters, continue with Logitech's connection troubleshooting rather than repeating a more aggressive wash. If mechanical roughness remains, report the symptoms and any visible damage to support. A clean trackball does not guarantee that a worn component, liquid spill, or damaged switch has been repaired.