ABMA 14202:1998(R2008) pdf free
ABMA 14202:1998(R2008) pdf free.Aerospace一Airframe ball bearings,single-row, rigid,diameter series 0 and 2 – Metric series
This International Standard specifies the characteristics, boundary dimensions, tolerances, internal clearances and permissible loads of metric series single-row, rigid ball bearings of diameter series 0 and 2, in accordance with ISO 15, used in airframe applications. These bearings are full complement (without cage) with a single row of balls and a flling slot. These bearings are designed to withstand only slow rotations and oscillations under load and are intended for use between fixed and moving parts of an aircraft structure and their control surfaces.The airframe ball bearings covered by this International Standard are designed to operate in the temperature range of- 54 °Cto+ 150 °C.
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. All 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 15:1998, Rolling bearings – – Radial bearings一Boundary dimensions, general plan.
ISO 683-17:- -1), Heat-treated steels, alloy steels and free-cutting steels一Part 17: Ball and roller bearing steels.
ISO 1132:1980, Rolling bearings – Tolerances 一Definitions.
ISO 2082:1986, Metallic coatings一Electroplated coatings of cadmium on iron or steel.
ISO 4520:1981, Chromate conversion coatings on electroplated zinc and cadmium coatings.
Where cadmium plating is specified (code ltters D, M and H), it shall be in accordance with ISO 2082. The external surfaces of bearing rings, except the bore of the inner ring, shall be cadmium plated. Plating on the internal surfaces shall be at the manufacturers option, except the raceways shall not be plated. The thickness of the plating shall not be less than 7 μm and not more than 15 um, except plating on the chamfers of the bore may vary from the specified thickness. The bearing shall be embrittlement-relieved within 4h of plating by heat treatment at 140°C±10 °C for a minimum of 8 h followed by chromate treatment in accordance with ISO 4520 (code letters D and Honly).ABMA 14202 pdf free download.
