ISO 3952-2-1981 rus PDF

Full title and description

ISO 3952-2:1981 — Kinematic diagrams — Graphical symbols — Part 2: symbols for friction and gear mechanisms and for cam mechanisms. (Reference record and Russian-language entry available.)

Abstract

This part of ISO 3952 establishes a set of standardized graphical symbols intended to simplify preparation, reading and interchange of kinematic (motion) diagrams used in technical documentation and educational literature. Part 2 specifically covers symbols for friction mechanisms, gear trains and gear elements, and cam mechanisms.

General information

• Status: Published / International Standard (confirmed through ISO review cycles).
• Publication date: July 1981 (1981-07).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 21.020; 01.080.30 (mechanical engineering; technical drawings/graphics).
• Edition / version: Edition 1 (1981).
• Number of pages: 12 pages (commercial catalog listing).

Scope

ISO 3952-2:1981 defines a consistent symbol system for representing components and elements of kinematic diagrams related to friction and toothed-wheel (gear) mechanisms and cam mechanisms. It is intended for use in engineering drawings, technical manuals and teaching materials to promote clarity and international interchangeability of schematic kinematic representations.

Key topics and requirements

• Standardized graphical symbols for friction elements (friction drives, clutches where applicable).
• Symbols for gear elements and gear trains, including conventional depictions of different gear types and gear engagements.
• Symbols for cam profiles and cam-driven mechanisms.
• Rules for combining symbols into clear kinematic diagrams suitable for technical documentation and instruction.
• Guidance ensuring symbols are internationally comprehensible and consistent across technical literature.

Typical use and users

Used by mechanical engineers, machine designers, technical illustrators, draftspeople, technical writers and educators who prepare or interpret kinematic diagrams for design documentation, maintenance manuals, instruction materials and classroom use.

Related standards

ISO 3952 is a multi‑part series of standards for kinematic diagrams. Relevant related parts include ISO 3952-1:1981 (Part 1 — motion of links, kinematic pairs, links and N‑bar linkages) and ISO 3952-3:1979 (Part 3 — Geneva/ratchet mechanisms, couplings and brakes). These adjacent parts together provide symbol sets covering a wide range of mechanism types.

Keywords

kinematic diagrams, graphical symbols, gears, cams, friction mechanisms, machine design, technical drawing, ISO 3952, symbol standard.

FAQ

Q: What is this standard?

A: ISO 3952-2:1981 is Part 2 of the ISO 3952 series; it specifies standardized graphical symbols for representing friction and gear mechanisms and cam mechanisms in kinematic (motion) diagrams.

Q: What does it cover?

A: It covers symbol definitions and conventions for friction elements, various gear elements and gear trains, and cam mechanisms, together with rules for their use in technical and educational diagrams.

Q: Who typically uses it?

A: Mechanical engineers, draftsmen/technical illustrators, maintenance and documentation teams, and educators preparing schematic representations of mechanisms. (See “Typical use and users” above.)

Q: Is it current or superseded?

A: The published edition dates from 1981; ISO listings show the standard as published and repeatedly reviewed/confirmed in ISO review cycles. Users should check ISO or their national standards body for any amendments, national adoptions, or more recent revisions before relying on the text for regulatory or procurement requirements.

Q: Is it part of a series?

A: Yes — ISO 3952 is published in multiple parts (for example Parts 1, 2 and 3) covering different groups of kinematic symbols; Part 1 and Part 3 are directly related to Part 2.

Q: What are the key keywords?

A: Kinematic diagrams; graphical symbols; gears; cams; friction mechanisms; technical drawing; ISO 3952.