Interlocking Gears Illustration - Mechanical Engineering Diagram #1261268 (License: Personal Use)

This high-contrast black-and-white illustration depicts two spur gears in mesh: a larger gear with a spoked hub and a smaller pinion gear, both featuring clearly defined involute teeth and central shafts. The linework emphasizes mechanical precision, with cross-hatching indicating depth and structural integrity. The style evokes 19th-century engineering manuals, making it suitable for educational or historical contexts.

Used in engineering textbooks, mechanical design tutorials, STEM learning materials, or industrial-themed websites to explain gear systems, torque transmission, or historical machinery. Matches user intent for visual reference, classroom instruction, or conceptual illustration of mechanical advantage.