These small, but crucial components enable the inner drum of a washing machine to rotate smoothly and efficiently during the wash cycle. Typically located within the drum support assembly, they facilitate the high-speed spinning necessary for effective cleaning and water extraction. A common configuration utilizes two main units: one supporting the drum shaft at the rear of the appliance and another at the front. These often consist of a metal ring containing small metal or ceramic balls encased in a lubricant, reducing friction and allowing free rotation.
Proper function is essential for reliable appliance operation. They minimize friction, reducing wear and tear on the drum and motor, thus extending the lifespan of the washing machine. Historically, these components were simpler and often required more frequent replacement. Advances in materials science and manufacturing have led to more durable and efficient designs, contributing to longer appliance lifespans and quieter operation. Without properly functioning units, the washing machine drum might seize, leading to costly repairs or even requiring a full appliance replacement.
