BS ISO 492 pdf download

BS ISO 492 pdf download

BS ISO 492 pdf download Rolling bearings — Radial bearings — Geometrical product specifications (GPS) and tolerance values
This International Standard specifies dimensional and geometrical characteristics,limit deviations fromnominal sizes, and tolerance values to define the interface (except chamfers) of radial rolling bearingsNominal boundary dimensions are defined in ISO 15, ISO 3552] and ISO 84439)
This International Standard does not apply to certain radial bearings of particular types (e.g. needleroller bearings) or for particular fields of application (e.g. airframe bearings and instrument precisionbearings). Tolerances for such bearings are given in the relevant International Standards.Chamfer dimension limits are given in ISO 582.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including any amendments) applies.
ISO 15, Rolling bearings — Radial bearings — Boundary dimensions, general planISO 582, Rolling bearings — Chamfer dimensions — Maximum values
SO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances of form,orientation.location and run-out
ISO 5593, Rolling bearings — Vocabulary
ISO 14405-1, Geometrical product specifications (GPS)- Dimensional tolerancing – Part 1: Linear sizesISO/TS 17863, Geometrical product specification (GPS)- Geometrical tolerancing ofmoveable assemblies
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1101,ISO 5593,ISO 14405-1and ISO/TS 17863 apply.
4 Symbols
To express that the ISO/GPS system, ISO 80158,is applied, the dimensional and geometricalcharacteristics shall be included in the technical product documentation (for example, on the drawing)The dimensional and geometrical specifications, associated to these characteristics are described inTable 1 and Figures 1 to 17.
Descriptions for symbols are in accordance with GPS terminology; relationships with traditional termsare described in Annex A.
A tolerance value associated to a characteristic is symbolised by t followed by the symbol for thecharacteristic, for example tvBs.
The detailed definitions for terms in ISO 1101 and ISO 14405-1 and traditional terms in ISO 1132-1 [4] are not fully equal. For differences, see Annex C.

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