ABMA 12240-2:1998 pdf download.Spherical plain bearings一 Part2: Angular contact radial spherical plain bearings
1 Scope
This part of ISO 12240 specifies dimensions and tolerances for angular contact radial spherical plain bearings. The specified tolerance values apply to finished, angular contact radial spherical plain bearings before any coating or plating. Angular contact radial spherical plain bearings need not conform to the design ilustrated but compliance is required as regards dimensions and tolerances specified. NOTE- Angular contact radial spherical plain bearings for aiframe applications are not covered by this part of ISO 12240.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 12240. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 12240 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 582 : 1995, Rolling bearings – Chamfer dimensions – Maximum values. ISO 1132-1: – -1), Rolling bearings – Tolerances – Part 1: Terms and definitions. ISO 6811:1998, Spherical plain bearings – Vocabulary.
3 Definitions and symbols
For the purposes of this part of IsO 12240, the definitions given in ISO 1132-1 and ISO 6811 apply. The symbols (except those for tolerances) shown in figure 1 and the values given in the tables denote nominal dimensions unless specified otherwise.
B Inner ring width C Outer ring width D Outside diameter D1 Bore diameter of outer ring d Bore diameter d] Outside diameter of inner ring dk Sphere diameter rs min2) Smallest single chamfer dimension, inner ring r1s min2) Smallest single chamier dimension, outer ring s Distance between sphere diameter centre and inner ring back face T Bearing width VDmp Variation of mean outside diameter Vdmp Variation of mean bore diameter VDp Variation of outside diameter in a single radial plane Vdp Variation of bore diameter in a single radial plane 0ps Deviation of a single inner ring width 4cs Deviation of a singie outer ring width 4pmp Deviation of mean outside diameter in a single plane Admp Deviation of mean bore diameter in a single plane Ors Deviation of the actual bearing width
ABMA 12240-2:1998 pdf download
