1. Washing Machines: Steel balls ensure smooth drum rotation.
2. Refrigerators: They are used in compressors and fans to improve energy efficiency.

3. Vacuum Cleaners: Steel balls enhance motor and brush performance.

1. Computers: They aid in cooling fan efficiency.
2. Printers: Steel balls ensure smooth paper feeding.

1. Power Windows: Steel balls facilitate smooth operation.
2. Seat Adjusters: They enable precise positioning.

3. Sunroofs: Steel balls ensure quiet operation.

1. Bicycles: Steel balls enhance performance in wheel hubs and pedals.

2. Skateboards: They provide a smooth rolling action