ASTM D2266-01 (2015) rus PDF

Full title and description

ASTM D2266-01 (Reapproved 2015) — Standard Test Method for Wear Preventive Characteristics of Lubricating Grease (Four-Ball Method). This test method describes the four-ball wear test used to determine the relative wear-preventive properties of lubricating greases in sliding steel-on-steel applications. The document provides procedures for preparing and running the four-ball wear test and for reporting wear results (typically expressed as wear scar dimensions) to allow comparative evaluation of greases.

Abstract

ASTM D2266-01 (2015) specifies a laboratory bench test—the four-ball wear method—intended to evaluate and compare the wear-preventive performance of lubricating greases under controlled steel-on-steel sliding contact. The method yields comparative measures (e.g., wear scar size) that help rank greases for relative anti-wear performance under the stated test conditions; it is not intended to predict field life nor to classify extreme-pressure behavior.

General information

• Status: Reapproved 2015; subsequently superseded by a later edition (ASTM D2266-23).
• Publication date: 2015 (designation shown as D2266 − 01, reapproved 2015; original adoption 1964).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 75.100 — Lubricants, industrial oils and related products.
• Edition / version: D2266-01 (Reapproved 2015).
• Number of pages: 4 pages (concise test method).

Scope

This standard covers the determination of wear-preventive characteristics of greases in sliding steel-on-steel applications using the four-ball machine. It is intended for comparative laboratory evaluation under the specified test conditions and is not intended to predict wear for other metal combinations or to evaluate extreme-pressure (EP) properties.

Key topics and requirements

• Description of the four-ball wear-test apparatus and required ball specimen preparation.
• Test procedure for running greases under controlled load, speed and duration to produce a wear scar.
• Measurement and reporting of wear results (wear scar dimensions) for comparative ranking.
• Notes on significance, limitations and interpretation—method gives relative results for the stated conditions and does not substitute for field testing.
• Precision and interlaboratory reproducibility considerations and reference to precision statements.

Typical use and users

Used by lubricant manufacturers, independent test laboratories, OEMs and R&D/tribology groups for product development, quality control and comparative performance screening of greases. Also referenced by specifications and procurement documents where comparative anti-wear ranking is required.

Related standards

Part of the ASTM D02 collection of test methods for lubricants and greases. Other related and cross-referenced standards include ASTM tests for lubricant wear and EP performance and industry grease specifications (examples in the same family include D4172, D4950 and later revisions of D2266). The D2266 series is maintained in Book of Standards volume covering lubricants and related products.

Keywords

four-ball; wear; grease; lubricating grease; wear-preventive; tribology; anti-wear; laboratory test.

FAQ

Q: What is this standard?

A: ASTM D2266-01 (Reapproved 2015) is a standardized laboratory test method that describes the four-ball wear test for assessing the wear-preventive characteristics of lubricating greases in steel-on-steel sliding contact.

Q: What does it cover?

A: It covers apparatus, specimen preparation, test procedure, measurement and reporting of wear produced in the four-ball test, and provides guidance on the method’s significance and limitations for comparative evaluations.

Q: Who typically uses it?

A: Lubricant and grease manufacturers, independent testing laboratories, OEMs, maintenance/quality teams and tribology researchers for product development, QC and comparative performance screening.

Q: Is it current or superseded?

A: The D2266-01 (2015) reapproval is an older edition. Users should note it has been superseded by a later ASTM revision (for example D2266-23) and should consult the latest active edition for the official and current test procedure.

Q: Is it part of a series?

A: Yes. D2266 is part of the ASTM D02 committee’s suite of standards covering lubricants, industrial oils and related test methods; it is published in the relevant section of the ASTM Annual Book of Standards.

Q: What are the key keywords?

A: Four-ball, grease, wear, lubricating grease, wear-preventive, tribology, anti-wear.