GOST 800-78 PDF

Full title and description

GOST 800-78 — "Трубы подшипниковые. Технические условия" / "Bearing tubes. Technical requirements". National (interstate) standard that specifies technical requirements, dimensions, tolerances, material grades, inspection and marking for seamless bearing tubes used for manufacture of bearing components.

Abstract

This standard sets requirements for seamless steel bearing tubes (hot-deformed, typically turned on the outer surface, and cold-deformed, typically non-turned) made from specified bearing-steel grades (for example variants of ШХ15 and related heat-treatment conditions). It covers permitted sizes and dimensional tolerances, mechanical and chemical property requirements, surface quality limits (waviness, ovality, curvature), permissible lengths and allowable shortened pieces, sampling and test methods, marking, packing and acceptance rules. The document includes several amendments issued after initial publication and has been maintained in national collections with periodic reissues and updates.

General information

• Status: Active (maintained / in force in national collections; subject to periodic amendments and reissues)
• Publication date: Approved 11 September 1978; date of introduction into force 1 January 1981. Reissued editions and updates published (reissue 2004; text update recorded 1 June 2024).
• Publisher: Interstate standard (originally USSR State Committee for Standards); currently maintained in national standards collections (EASC / national standard bodies and Russian standards publishers).
• ICS / categories: OKC/ICS 23.040.10 (Pipes, tubes and hoses) — metallurgy / ferrous products; Group code В62 (industry classification in standard registries).
• Edition / version: Designation GOST 800-78 (original designation year 1978). Includes Amendments No. 1–4 issued in the 1980s–1990s and later editorial updates; reissue 2004.
• Number of pages: 12 (typical length of the published text in standard collections).

Scope

Applies to seamless bearing tubes intended for manufacture of bearing parts. The standard covers both hot-deformed (turned externally) and cold-deformed (non-turned) seamless steel tubes produced from specified bearing-steel grades (commonly variants of ШХ15 and its heat-treated or remelted variants). It defines permitted dimensions, wall thicknesses, tolerances, permissible deviations in roundness and straightness, surface quality limits, mechanical and chemical property requirements, heat-treatment provisions, testing and inspection procedures, marking, packing and delivery conditions.

Key topics and requirements

• Scope of product: seamless bearing tubes manufactured hot-deformed (turned) or cold-deformed (not turned).
• Permitted steel grades: typical bearing steels such as ШХ15, ШХ15-Ш, ШХ15СГ, ШХ15-В and related designations (including electroslag remelted variants where specified).
• Dimensional range and tolerances: outside diameters, wall thicknesses, and length ranges with specified maximum deviations and production tolerances for hot and cold processes.
• Surface quality limits: allowable ovality, outer-surface waviness (expressed in mm per wavelength), surface defects criteria and limits on curvature (e.g., mm per metre).
• Length and short-piece rules: standard production lengths for hot- and cold-deformed tubes and permitted proportion of shortened pieces in a batch.
• Mechanical and chemical requirements: specified ranges for tensile properties, hardness (as applicable), and chemical composition limits for each steel grade.
• Heat treatment and metallurgical requirements: instructions for quenching, tempering or other heat treatments where required to achieve bearing properties.
• Inspection, sampling and testing: acceptance rules, sample sizes, non-destructive and destructive tests, and criteria for batch acceptance or rejection.
• Marking, packing and delivery: required marking on pipes or bundles, packing methods to protect surface quality during transport, and documentation to accompany deliveries.
• Amendments and application notes: the standard includes several amendments (1980s–1990s) and has been reissued/updated in later compilations of standards.

Typical use and users

Used by manufacturers of precision seamless tubes, rolling and tube-producing enterprises, bearing manufacturers and component shops that machine rings and races from tube stock. Also referenced by procurement departments, quality and inspection laboratories, design engineers specifying material and geometrical requirements for bearing parts, and certification/standards offices managing conformity of metal products.

Related standards

Standards and normative documents commonly referenced together with GOST 800-78 include preceding or related GOSTs for tube products and bearing steels (for example GOST 800-55 — earlier replaced by 800-78, GOST 801-78 and various GOSTs covering steel grades, chemical analysis and test methods). Documents on precision tubes and related mechanical/chemical testing standards (series of GOSTs for steel composition, hardness, non-destructive testing and dimensional verification) are typically used in conjunction with this standard. Work to replace or modernize the text under a new project designation (e.g., a draft GOST 800) has been recorded in standards development registries.

Keywords

GOST 800-78; bearing tubes; seamless tubes; bearing steel; ШХ15; technical requirements; dimensions; tolerances; surface quality; heat treatment; inspection; marking; packaging; OKC 23.040.10.

FAQ

Q: What is this standard?

A: GOST 800-78 is the interstate (GOST) standard titled "Трубы подшипниковые. Технические условия" (Bearing tubes. Technical requirements). It defines technical and quality requirements for seamless bearing tubes used to manufacture bearing components.

Q: What does it cover?

A: It covers material grades for bearing tubes, manufacturing types (hot-deformed turned and cold-deformed non-turned), permitted dimensional ranges and tolerances, surface quality limits (waviness, ovality, curvature), mechanical and chemical requirements, heat treatment provisions, sampling and test procedures, marking, packaging and acceptance rules.

Q: Who typically uses it?

A: Tube manufacturers, bearing and component producers, procurement and quality-control engineers, metallurgical laboratories, standards and certification bodies, and designers who specify tube material and geometrical requirements for bearing parts.

Q: Is it current or superseded?

A: Historically introduced following approval in 1978 and put into force on 1 January 1981, GOST 800-78 has been maintained with amendments and a 2004 reissue and later text updates. It is recorded as active in national standard collections. At the same time, standards development activity to modernize or replace the document (a project shown as a new GOST 800) has been registered; users needing the absolute latest legal/technical status for procurement or regulatory compliance should check the current national standards registry or the responsible standards body for any formal replacement or withdrawal notices and for the effective date of any successor standard.

Q: Is it part of a series?

A: Yes. GOST 800-78 belongs to the family of standards for metallic tubes and precision (bearing) tube products and is connected by normative references to other GOSTs that specify steel grades, test methods and related tube product requirements. It replaced an earlier GOST (800-55) and has normative links to adjacent tube and steel standards.

Q: What are the key keywords?

A: Bearing tubes, seamless tubes, ШХ15, technical requirements, tolerances, surface quality, GOST 800-78, heat treatment, inspection, marking.