The glass cooking tray is the dinner plate-size disc inside the microwave on which you place foods. The tray is typically removable and bears an item number, 1052592. A single Bosch replacement tray costs $67.90. The tray measures approximately 14 inches in diameter.
The rotating ring assembly consists of three rigid spokes extending in a flat plane outward from a central hub. Each spoke measures just under 5 inches, measuring from the central point of the hub. At the center of the hub, a grooved hole allows the assembly to connect to the microwave's motor elements. At the exterior end of each of the spokes, a small white wheel allows the assembly to rotate smoothly. The rotating rings' assembly transfers the movement of the motor housing to the glass plate, which it supports. The piece costs $28.90. The assembly's item number is 1385101.
A component central to the microwave's functioning, the magnetron is a diode electron tube that creates microwave energy through the functioning of its anode, filament or cathode, antenna and magnets. The Bosch magnetron part number is 1052596. A vital component to operation, the magnetron costs $121.60. It measures approximately 5 x 5.5 x 4 inches.
The lamp for a Bosch microwave measures approximately 2.5 x 2 inches, including the bulb's housing. The lamp's item number is 1050215, and it costs $25.95 for the replacement part.
The Bosch microwave motor is roughly round in shape with a diameter of approximately 2.5 inches. Powering the rotating movement of the food tray during microwave operation, the motor runs at 3.0 watts, 50/60 Hz and produces 2.5/3 rotations per minute. The item number is 1044273. You can purchase a new motor for $21.15.