GOST 17696-89 PDF

Full title and description

GOST 17696-89 — "Globoid gears. Calculation of geometry". National (USSR) standard that defines methods for calculating the geometric parameters of globoid (conjugate worm) gear transmissions.

Abstract

This standard establishes calculation procedures and formulae used to determine the geometric parameters of globoid worm-and-wheel (globoid) gearsets, including geometry of the globoid worm and the globoid wheel, and provisions for longitudinal modification of the worm flank. It is intended to ensure correct meshing geometry for globoid gear pairs with standard production and adjustment processes.

General information

• Status: Listed as active / published national standard (original USSR state standard).
• Publication date: 1 July 1990 (date of introduction into force).
• Publisher: State Committee for Standards of the USSR (Gosstandart) — adopted by resolution of the USSR State Committee for Product Quality Management and Standards.
• ICS / categories: Mechanical engineering — gear transmissions / globoid (conjugate worm) gear geometry; GOST technical group G02.
• Edition / version: GOST 17696-89 (original edition introduced 1990; replaces GOST 17696-80).
• Number of pages: 23 pages (standard document length as published).

Scope

Applies to globoid transmissions with a line-type worm or worms whose nominal tooth-surface is produced by a generating surface of revolution formed by a straight line and which may be modified during manufacture by machine setup. The standard covers gearsets with a 90° shaft angle and center distances up to 630 mm, and sets out the calculation method for the geometric parameters of the globoid transmission, worm and wheel.

Key topics and requirements

• Definition of geometric elements and notation for globoid worm and globoid wheel geometry.
• Calculation procedures for flank geometry, contact conditions and conjugacy for globoid tooth surfaces.
• Rules and formulae for longitudinal (axial) modification of the worm flank and tabulated coefficients for common modification cases.
• Reference to normative documents required for related parameters (materials, tolerances and measurement references).
• Limits of applicability (axis angle 90°, center distances up to 630 mm) and assumptions about manufacturing modification method.

Typical use and users

Used by mechanical design engineers, gear designers, gearbox manufacturers, tooling and machine-tool engineers, and testing/quality departments involved in design, manufacture and verification of globoid (worm) gearsets. Also referenced by researchers and educators working on non-standard gear geometries and transmission design.

Related standards

The standard cites and references several normative documents that are used for calculations and references, including (as listed in the standard) GOST 6636-69, GOST 9369-77, GOST 16530-83, GOST 18498-89 and GOST 24438-80, and it conforms to interstate technical document ST SEV 6499-88.

Keywords

Globoid gear; globoid worm; worm wheel; worm gear geometry; gear calculation; longitudinal modification; gear design; conjugate tooth surfaces.

FAQ

Q: What is this standard?

A: GOST 17696-89 is a USSR state standard titled "Globoid gears. Calculation of geometry" that defines methods and formulae for calculating the geometry of globoid worm-and-wheel gearsets.

Q: What does it cover?

A: It covers the geometric calculation of globoid transmissions (worm and wheel), provides definitions and calculation procedures, includes provisions for longitudinal modification of worm flanks, and specifies applicability limits (90° shaft angle, center distances up to 630 mm).

Q: Who typically uses it?

A: Gear designers, gearbox manufacturers, mechanical design and tooling engineers, quality/test laboratories and academic researchers involved with worm and globoid gear design and verification.

Q: Is it current or superseded?

A: GOST 17696-89 replaced the earlier GOST 17696-80 when introduced; public listings show the 17696-89 document as the published edition (introduced 1 July 1990). Available document listings treat the 1990 text as the active published edition, although users should verify national adoption or any later national/regional replacements for specific procurement or regulatory purposes.

Q: Is it part of a series?

A: It forms part of GOST gear and transmission normative system and references other GOSTs related to gear parameters, tolerances and measurement procedures; it also conforms to ST SEV 6499-88 (an interstate standard).

Q: What are the key keywords?

A: Globoid gear, globoid worm, worm wheel, gear geometry, conjugate surfaces, longitudinal modification, worm transmission.