Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

Q021223

IEEE / ANSI

ANSI/IEEE Mechanical gear connection form

This reference locates mechanical gear connection in Autodesk's IEEE-oriented mechanical controls, coupling family. A gear-connection indication identifies transmission through a gearing relationship. A gear relationship transfers motion through the documented gearing arrangement. It can relate an operating member to a switch, position device or driven mechanism. The public library uses Q021223 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

Drawing use: Schematic
Application: Control circuits
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Gear Joint. Autodesk IEEE Symbol Preview: Mechanical Controls, Coupling, block Q021223. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

A distinction that matters

The symbol does not give a gear ratio, tooth geometry or mechanical rating.

Full reference

Q021223

IEC

Mechanical gear connection

A gear-connection indication identifies transmission through a gearing relationship. A gear relationship transfers motion through the documented gearing arrangement. It can relate an operating member to a switch, position device or driven mechanism.

Drawing use: Schematic
Application: Control circuits
Reference family: IEC / Manufacturer
Form evidence: Mechanical gear connection. Autodesk IEC-60617 Symbol Preview — Mechanical coupling qualifiers; vendor family reference, not certified IEC geometry or database identifier.

A distinction that matters

The symbol does not give a gear ratio, tooth geometry or mechanical rating.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.