Sharp Part Number : 12170000004310
The microwave roller ring has many descriptions including microwave rollers, microwave turntable support ring and rotating ring. It is designed to carry the weight of the glass tray and allow it to rotate inside the microwave. Usually made of plastic with plastic wheels, the turntable roller ring sometimes by design is heat proof for use in combination ovens. The roller guide usually runs around a smooth section on the oven base.
Model that this part fits :