Roller Bearing (Noun)
Meaning
Bearings containing small metal balls.
Classification
Nouns denoting man-made objects.
Examples
- The mechanic replaced the worn-out roller bearing with a new one to reduce the friction in the engine.
- The bicycle's wheels spun smoothly thanks to the roller bearings that allowed the hubs to rotate freely.
- The engineer designed a new type of roller bearing that could withstand extremely high temperatures and pressures.
- The roller bearing in the gearboxes of the wind turbines had to be inspected regularly to ensure efficient energy production.
- The small metal balls in the roller bearing of the electric motor made a slight humming noise as they spun around.