GOST 30552-98 PDF

Full title and description

GOST 30552-98 — Заготовки профильные (необработанные оси) для подвижного состава железных дорог колеи 1520 мм. Припуски и допуски. English title: "Round billets (non‑machined axles) of railway wheels for 1520 mm gauge line. Allowances and tolerances." This interstate standard specifies dimensional allowances and permissible deviations for profiled blanks (non‑machined axles) intended for rolling stock of the 1520 mm gauge.

Abstract

GOST 30552-98 sets requirements for profile blanks used as non‑machined axles for railway vehicles (freight cars, electric and diesel locomotives, motor cars and metro cars) operating on the 1520 mm gauge. The standard establishes machining allowances, nominal dimensions and permissible tolerances to ensure interchangeability and proper finishing during subsequent machining and assembly.

General information

• Status: Active / In force (adopted as an interstate standard and in use for rail rolling‑stock blanks).
• Publication date: Registered 23 May 1998; introduced into force 1 January 2001 (often shown as effective date 01.01.2001).
• Publisher: Adopted by the Interstate Council for Standardization, Metrology and Certification and published as a GOST (national/interstate standard used by CIS states).
• ICS / categories: ICS 45.060 (Railway engineering) — related classification entries also reference rolling‑stock component codes.
• Edition / version: Original interstate edition (designated 30552‑98); introduced into national practice with effective date 1 January 2001.
• Number of pages: 7 pages (compact technical standard).

Scope

The standard applies to profiled blanks (round billets/non‑machined axles) manufactured for the wheelsets of railway rolling stock with 1520 mm gauge. It defines the machining allowances required for subsequent finishing operations and the limiting deviations (tolerances) on nominal sizes of the blanks to ensure they meet assembly and safety requirements for a range of rail vehicles including freight cars, locomotives, motor trains and metro stock.

Key topics and requirements

• Definitions and terminology for profiled blanks (non‑machined axles) used in wheelset manufacture.
• Specified nominal dimensions for common billet profiles used on 1520 mm gauge rolling stock.
• Machining allowances (material allowances) to be left on blanks for finishing operations.
• Permissible deviations (tolerances) on nominal sizes and form to guarantee interchangeability after machining.
• Normative references and related standards cited for measurement methods and complementary requirements.

Typical use and users

Primary users are manufacturers and suppliers of railway axle blanks and forgings, wheelset and axle production plants, rolling‑stock maintenance and repair workshops, design offices for railway vehicles, and quality/inspection laboratories that verify incoming blanks before machining. The standard is used to specify purchase requirements, production tolerances, and acceptance criteria for blanks destined for final turning, heat treatment and assembly into wheelsets.

Related standards

GOST 30552-98 references and complements other GOST/Interstate standards for wheel and axle design, heat treatment and dimensional control. Normative links in the text include referenced standards governing measurement and related component requirements (examples cited in the standard’s references section). Users commonly consult adjacent GOSTs covering wheelsets, axle technical requirements and inspection methods when applying this standard.

Keywords

GOST 30552-98, round billets, profiled blanks, non‑machined axles, railway wheels, 1520 mm gauge, machining allowance, tolerances, rolling stock, axle forgings.

FAQ

Q: What is this standard?

A: GOST 30552-98 is an interstate (GOST) standard that specifies allowances and tolerances for profiled round billets used as non‑machined axles for railway rolling stock of the 1520 mm gauge.

Q: What does it cover?

A: It covers nominal dimensions, required machining allowances, and permissible deviations (tolerances) for profiled blanks intended for subsequent machining and use as axles in wheelsets for various rail vehicles.

Q: Who typically uses it?

A: Manufacturers of axle blanks and forgings, wheelset producers, railway rolling‑stock design and maintenance organizations, and inspection/quality control personnel.

Q: Is it current or superseded?

A: The standard is listed as active/in force (introduced 01.01.2001 following adoption in 1998). Users should verify whether a newer amendment or replacement exists in national/regional registries before application.

Q: Is it part of a series?

A: It is a standalone interstate standard addressing profiled blanks for 1520 mm gauge rolling stock, but it is commonly used alongside other GOSTs that govern wheelset components, axle technical requirements and inspection procedures.

Q: What are the key keywords?

A: Round billets, profiled blanks, non‑machined axles, machining allowance, tolerances, 1520 mm gauge, rolling stock, axle forgings.