1. Glass Rotating Cooking Tray aka “turntable” (Part #: WB49X10063) and
2. Circular Roller Guide with moving bearings (Part #: WB06X10001)
Sold as a pair
In as-new condition but compare new @ $95 for turntable without bearings:
https://www.partselect.com/PS250009-GE-WB49X10063-Glass-Cooking-Tray.htm?SourceCode=1&SearchTerm=JVM1861SF001&ModelNum=JVM1861SF001
Fits GE Microwave Model #: JVM1861SF001 and many other models and brands of microwave