The gear is part of CD loader assembly in Sony CD players.
Faulty gear can be replaced with 3D printed one. Replacement gear was fully tested for correct operation.
Gear position in the schematic:
Gear is compatible with following devices:
CDP XA555ES, CDP-XA50ES, CDP-X5000.
However, it might work also with other devices – just check your service manual.
Available for purchase in e-shop.