Circular Mechanical Component Diagram - Engineering Schematic #3315657 (License: Personal Use)

This is a black-and-white line drawing of a circular mechanical part, likely a dial, encoder, or calibration disc. It features multiple concentric rings with evenly spaced rectangular notches-possibly for indexing or optical sensing-and two central holes: one with a knurled edge suggesting a screw or knob, and another plain hole likely for alignment or fastening. The outermost ring includes a “V” marking, possibly indicating a reference point or orientation.

Used in technical documentation, patent filings, engineering manuals, or educational resources to illustrate components like rotary encoders, dials, or precision instruments. Matches user intent for schematic understanding, reverse engineering, or component identification.