ABMA 14215:1997(R2008) pdf free

ABMA 14215:1997(R2008) pdf free.Aerospace – Airframe ball bearings,double-row, rigid,precision, sealed,heavy duty – Inch series
This Intermational Standard specifies the characteristics, boundary dimensions, tolerances, intermal clearances and permissible loads of inch series, double-row, sealed, rigid, heavy duty ball bearings with increased precision and reduced internal clearances used in airframe aplications. These bearings are full complement (without cage) with a double row of balls and 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 Intemational Standard are designed to operate in the temperature range of- 54 °C to+ 150 °C.
The following standards contain provisions which, through reference in this text, constitute provisions of this Intermational Standard. At the time of publication, the editions indicated :vere valid. All standards are subject to revision, and parties 切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 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一Tolerances 一Definitions.
ISO 2082:1986, Metallic coatings一Electroplated coatings of cadmium on iron or steel.
Where cadmium plating is specified (code letters 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 intemal 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 embittlement-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 14215 pdf free download.