ABMA 199:1997 pdf download

ABMA 199:1997 pdf download.Rolling bearings一Thrust bearings一Tolerances
1 Scope
This International Standard specifies tolerances for boundary dimensions (except chamfer dimensions) and for running accuracy of thrust rolling bearings with flat back faces specified in ISO 104. This International Standard does not apply to certain thrust bearings, e.g. needle roller bearings, or for particular fields of application, e.g. special precision bearings. Chamfer dimension limits are given in ISO 582.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid, AlI standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 104:1994, Rolling bearings – – Thrust bearings一Boundary dimensions, general plan. ISo 582:1995, Rolling bearings – – Chamfer dimensions一Maximum values. ISO 1132:1980, Rolling bearings一Tolerances – Definitions. ISO 5593:1997, Rolling bearings一Vocabulary.
3 Definitions
For the purposes of this International Standard the definitions given in ISO 1132 and IsO 5593 apply.
4 Symbols
The symbols (except those for tolerances) and the values given in the tables denote nominal dimensions unles specified otherwise. d bore diameter of shaft washer, single-direction bearing bore diameter of shaft washer, double-direction bearing Admp deviation of mean bore diameter in a single plane of shatt washer, single-direction bearing Acamp deviation of mean bore diameter in a single plane of shaft washer, double-direction bearing D outside diameter of housing washer 0Dmp deviation of mean outside diameter in a single plane of housing washer S。 variation in thickness between housing washer raceway and back face NOTE – Applies only to ball thrust bearings and cylindrical roller thrust bearings with 90° contact angle. S; variation in thickness between shaft washer raceway and back face NOTE- Applies only to ball thrust bearings and cylindrical roller thrust bearings with 90* contact angle. T bearing height single-direction bearing T bearing height, double direction bearing Ors deviation of the actual bearing height, single-direction bearing Or1s deviation of the actual bearing height, double-direction bearing Vdp variation of bore diameter in a single plane of shaft washer, single-dirction bearing Va2p variation of bore diameter in a single plane of shaft washer, double-direction bearing VDp variation of outside diameter in a single radial plane of housing washer