Realistic Differential Gear Animation -- 2

I need a high-fidelity 3D animation that clearly and accurately demonstrates the full mechanics of a differential gear for a technical audience. The goal is a realistic visual narrative that goes beyond the basics, showing every moving part—ring and pinion, spider gears, bearings, housing, and even the load transfer under varying wheel speeds.

Because this will be used as a technical demonstration, dimensional accuracy and real-world material behaviour are crucial. Metal textures, proper surface finishes, physically correct lighting, and smooth gear meshing must all read authentically on screen.

Deliverables
• Final video in MP4
• Native project file with organised layers and rigs. Source files are required for further development.
• 3D objects in a file format that can support Photoshop

Acceptance criteria
• Gear ratios and tooth counts should match with each other (supplied drawings are only for reference)
• Motion is jitter-free at 60 fps and survives slow-motion playback
• Material and lighting settings yield a polished, “real metal” look without visible noise or fireflies

The PDF file is attached and another mp4 video is only for reference