Differential Gear Mechanism Diagram - Engineering Illustration #113525 (License: Personal Use)

This black-and-white engineering diagram illustrates a classic open differential used in rear-wheel-drive vehicles, featuring a ring gear driven by a pinion, internal spider gears, and side gears connected to axle shafts. Key components are marked as 'a' (ring gear), 'b' (differential case/housing), and 'c' (side gear and axle shaft assembly), demonstrating torque distribution between wheels. The cutaway view reveals internal meshing geometry essential for understanding differential action during turns.

Used in automotive repair manuals, mechanical engineering textbooks, and online educational resources to explain how differentials allow wheels to rotate at different speeds while transmitting power; targets students, technicians, and DIY mechanics seeking foundational or troubleshooting knowledge.