6743/2 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEXKAYHAPOAHAR OPTAHM3AUWAO CTAHAAPTM3AUWMORGANISATION INTERNATIONALE DE NORMALISATION Lubricants, industrial oils and related products (class L) - Classification Part 2 : Family F (Spindle bearings, bearings and associated clutches) Lubrifiants, huiles industrielles et produits connexes (classe L) - Classification -- Partie 2 : Famille F (Paliers de broche, paliers et embrayages associés) First edition -- 1981-10-01 UDC 665.765 Ref. No. ISO 6743/2-1981 (E) 6743/2-1981 Descriptors : lubricants, lubricating oils, spindles, bearings, clutch linings, classification oSI Price based on 1 page Not for Resale Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing Inter- national Standards is carried out through iSo technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. 2 was developed by Technical Committee InternationalStandardISO6743/2 ISO/TC 28, Petroleum products and lubricants, and was circulated to the member bodies in August 1980. It has been approved by the member bodies of the following countries : Australia Germany, F. R. Poland Austria Hungary Romania India Spain Belgium Brazil Iran Sweden Israel Switzerland Bulgaria Turkey Canada Japan China Mexico United Kingdom USSR Czechoslovakia Netheriands Egypt, Arab Rep. of Norway Venezuela France Peru The member body of thefollowing country expressed disapproval of the document on technical grounds : Italy @ International Organization for Standardization, 1981 Printed in Switzerland Not for Resale ISO 6743/2-1981 (E) INTERNATIONAL STANDARD Lubricants, industrial oils and related products (class L) Classification Part 2 : Family F (Spindle bearings, bearings and associated clutches) Scope and field of application main applications of this family and at the final point for sub- 1 division by referring to composition of corresponding products. This part of ISO 6743 establishes the detailed classification of family F (Spindle bearings, bearings and associated clutches) which belongs to the class L (Lubricants, industrial oils and 3.2 Each category is designated by a symbol consisting of a related products). group of letters, which together constitute a code. It should be read in conjunction with isO 6743/0. NOTE -- The first letter of the code (F) identifies the family of the product considered but the second letter taken separately has no significance of its own. Reference The designation of each category can be supplemented by the ISO3448,Industrialliquidlubricants--/sOviscosityclassifica- addition of viscosity grades according to Iso 3448. tion. 3.3 In this classification system, products are designated in a 3Explanation of symbols used uniform manner. For example, a particular product may be designated in complete form, i.e. ISO-L-FD 68, or in an ab- 3.1 This detailed classification of family F has been estab- breviated form, i.e. L-FD 68, the number indicating the viscos- ity grade according to ISO 3448. lished by defining the categories of products required for the Classification of lubricants, industrial oils and related products (class L) Family F (Spindle bearings, bearings and associated clutches) General Particular More specific Composition and | Symbol Typical Code letter Remarks application 7-0SI application application special properties applications Spindle bear. F Spindle bear- Refined mineral oils FC Pressure, bath and Where clutches ings, bearings ings, bearings with impr