ISO 492 pdf download

ISO 492 pdf download Rolling bearings — Radial bearings — Geometrical product specifications (GPS) and tolerance values
Scope
This International Standard specifies dimensional and geometrical characteristics,limit deviations frominominal 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 8443(2
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 plan
ISO 582, Rolling bearings – Chamfer dimensions – Maximum values
ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances of formorientation,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 of moveable assemblies
3Terms 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 80151B, is applied, the dimensional and geometricacharacteristics 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 tyBs.
In this International Standard, the ISO default specification operator for size is in accordance withISO 14405-1,i.e. the two-point size is valid. Some specification modifiers are described in Annex D