1、Designation:F244404(Reapproved 2012)Standard Practice forDamage Prevention of Bearings,and Bearing ComponentsThrough Proper Handling Techniques1This standard is issued under the fixed designation F2444;the number immediately following the designation indicates the year oforiginal adoption or,in the
2、case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers requirements for the handling of allbearings and bearing components.1.2 T
3、his is a general practice.The individual bearing han-dling requirements shall be as specified herein or as specifiedin the contract or purchase order.In the event of any conflictbetween requirements of this practice and the individualbearing requirements of an OEM drawing,procurementspecification,or
4、 other specification,the latter shall govern.Many companies,organizations,and bearing users have excel-lent facilities,equipment,and knowledgeable personnel forhandling bearings.The thrust of this practice is for users that donot have this knowledge of bearings.1.3 This standard does not purport to
5、address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ABMA Standard:2ABMA 1 Terminol
6、ogy2.2 ISO Standards:3ISO 14644-1 Cleanrooms and Associated ControlledEnvironmentsPart 1:Classification of Air Cleanliness(DOD Adopted)ISO 14644-2 Cleanrooms and Associated ControlledEnvironmentsPart 2:Specifications for Testing andMonitoring to Prove Continued Compliance with ISO14644-1ISO 9001 Qua
7、lity Management SystemsRequirements3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,refer to ABMA 1.4.Significance and Use4.1 This practice covers bearings and bearing componentsof all material compositions and grades.It may be used todevelop a process for adequately handlin
8、g bearings.4.2 Unless the proper conditions of an adequate facility,equipment,and trained personnel are available,it may be betternot to inspect the bearings in-house.The danger of contami-nating and damaging the bearings may be much greater thanthe possibility of receiving bearings that will not fu
9、nction.4.3 Bearings are easily damaged at the customers receivingand test areas.In most cases,bearings should be acceptedbased on the bearing manufacturers certification.Certificatesof quality(conformance)supplied by the bearing manufacturermay be furnished in lieu of actual performance of such test
10、ingby the receiving activity of the bearings.The certificate shallinclude the name of the purchaser,contract number/POnumber,name of the manufacturer or supplier,itemidentification,name of the material,lot number,lot size,sample size,date of testing,test method,individual test results,and the specif
11、ication requirements.4.4 This practice does not cover clean room requirements ofminiature and instrument precision bearings.These bearingsrequire clean room environments in accordance with ISO14644-1 and ISO 14644-2.5.Reasons for Not Handling Bearings5.1 When bearings are received,the following ques
12、tionsmust be asked:5.1.1 What amount of inspection checks will be performedon the bearings?Do we need to do any checks?5.1.2 What will it cost to establish and maintain equipmentand facilities to inspect and test bearings?5.1.3 What is the established history of the bearing?If therehas never been a
13、rejection,is inspection warranted?5.1.4 What type of test is required and how detailed is it?5.1.4.1 Rough spin,5.1.4.2 Destructive,1This practice is under the jurisdiction of ASTM Committee F34 on RollingElement Bearings and is the direct responsibility of Subcommittee F34.03 onPreservation,Cleanin
14、g and Packaging.Current edition approved Dec.1,2012.Published January 2013.Originallyapproved in 2004.Last previous edition approved in 2004 as F244404.DOI:10.1520/F2444-04R12.2Available from American Bearing Manufacturers Association(ABMA),2025M Street,NW,Suite 800,Washington,DC 20036,http:/www.ame
15、ricanbearings.org.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.1.4.3 Nondestructive(NDT),5.1.4.4 Disassembly,5.1
16、.4.5 Test requires recleaning,relubrication,and repack-aging of the bearings,5.1.4.6 Test requires a clean room environment,5.1.4.7 Dimensional,or5.1.4.8 Performance.5.1.5 What type of documentation is required?5.1.6 Are trained personnel available?5.1.7 Are adequate equipment and facilities available?5.1.8 Do we have knowledge of the bearing manufacturersquality system?6.Equipment and Facilities6.1 The list below provides some conditions that must beconsidered by the bearing user.The bearing us
