1、BRITISH STANDARD BS ISO 14281:2002 Aerospace Gauges, for internal cruciform ribbed or unribbed drives Metric series ICS 49.030.20 BS ISO 14281:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authori
2、ty of the Standards Policy and Strategy Committee on 8 August 2002 BSI 8 August 2002 ISBN 0 580 40193 6 National foreword This British Standard reproduces verbatim ISO 14281:2002 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committ
3、ee ACE/12/1, Aerospace fasteners, fastening systems, details and parts (International), which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publication
4、s referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary
5、 provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpret
6、ation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 7, and a back cover
7、. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 14281:2002(E)INTERNATIONAL STANDARD ISO 14281 First edition 2002-06-15 Aerospace Gauges, for internal cruciform ribbed or u
8、nribbed drives Metric series Aronautique et espace Calibres de contrle, pour empreintes cruciformes avec ou sans saillies antidrapantes Srie mtrique BSISO14281:2002IS:18241 O2002(E) lcsid FDParemi ihTs PDF file mc yatnoaie nmt deddebyfepca.se Icca ncnadrow eitA hebods licsneilop gnic,y tihs file mir
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13、+ 9 74 E-mial coirypthgis.oc h Web ww.wiso.ch ii ISO 2002 Allr ithgsr esedevrBSISO14281:2002iiIS:18241 O2002(E) I SO 2002 All irthgs ersedevr iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of p
14、reparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental,
15、in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main ta
16、sk of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. ISO 142
17、81 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. BSISO14281:2002iiiIS:18241 O2002(E) vi I SO 2002 All irthgs ersedevrIntroduction The International Organization for Standardization (ISO) draws attention to the fact that it
18、is claimed that compliance with this International Standard may involve the use of a patent concerning gauges specified in this International Standard. Patent rights are held by the Phillips Screw Company worldwide. ISO takes no position concerning the evidence, validity and scope of this patent rig
19、ht. The holder of this patent right has assured the ISO that he is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with the ISO. Informatio
20、n may be obtained from: Phillips Screw Company 508 Edgewater Drive Wakefield, MA 01880 USA Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights other than those identified above. ISO shall not be held responsible for ident
21、ifying any or all such patent rights. BSISO14281:2002ivINTENRATIONAL TSANDADR IS:18241 O2002(E)I SO 2002 All irthgs ersedevr 1Aerospace Gauges, for internal cruciform ribbed or unribbed drives Metric series 1 Scope This International Standard specifies the dimensions of metric gauges which check int
22、ernal cruciform drives, ribbed or unribbed, used in metric screws in the nominal thread diameter range of 1,6 mm to 20 mm. The internal cruciform drives, ribbed and unribbed, are defined respectively in ISO 12256 and ISO 14279. 2 Configuration and dimensions See Figures 1, 2 and 3 and Tables 1 and 2
23、. Dimensions and tolerances are expressed in millimetres. The presentation of perpendicularity, location and run-out tolerances conforms to ISO 1101. 3 Designation Component part designation shall be as follows: The drive penetration gauge assembly (Figure 3) shall be identified by the gauge body de
24、signation. BSISO14281:20021IS:18241 O2002(E) 2 I SO 2002 All irthgs ersedevrGauge points shall be made from heat-treatable corrosion-resisting steel and heat-treated to hardness 58 HRC to 62 HRC. aRib clearance defined by dimensions L, S and T. bMinimum length of straight surface at angle N. Thereaf
25、ter, the form of run-out is optional. cAngle measured normal to the surface established by angle N. Figure 1 Configuration Gauge point BSISO14281:20022IS:18241 O2002(E) I SO 2002 All irthgs ersedevr 3Table 1 Dimensions Gauge point A B C F G H K L M N P Q S T Gauge point code 0,03 0 0,025 015 0 +0 0,
26、13 0,03 0 + 0,005 0,13 min. nom. tol. 0 015 0,13 0,13 0 0,05 0,03 0 +Gauge point code inches bR0 0,28 0,61 a 0,38 0,81 1,143 16,66 0,384 0 0,066 2,39 19,84 0 R1 0,48 1,001 138 1,27 2,21 17,48 3,2 0,513 7 3,96 20,62 0,64 1 R2 0,61 1,539 140 2,29 3,581 19,05 4,8 1,102 5,56 22,22 1,27 2 R3 0,76 2,497 1
27、46 3,81 5,309 19,84 7,2 2,098 5 45 6,35 23,01 1,98 3 R4 1,09 3,574 153 0,51 5,08 7,925 21,44 8,8 2,738 9,12 24,61 2,74 0,13 4 R5 1,57 5,867 162 46 0,64 7,9 12,7 26,19 13,54,394 0 0,025 7 13,49 29,36 4,83 0,18 5 aRadius: 0,28 max.; 0,23 min. bFor information and comparison purposes only. BSISO14281:2
28、0023IS:18241 O2002(E) 4 I SO 2002 All irthgs ersedevra) Body b) CollarcBody and collar shall be made from corrosion-resisting steel 440C and heat-treated to hardness 30 HRC to 35 HRC. aRadius or chamfer. bReam to minimum depth of 14. cCollar used with R5 body only. Mark collar ISO 14281-R5. Figure 2
29、 Configuration Drive penetration gauge body and collar BSISO14281:20024IS:18241 O2002(E) I SO 2002 All irthgs ersedevr 5Table 2 Dimensions Drive penetration gauge body K B C H J N P Y Drive penetration gauge body code 0,005 0,41 0,08 0,41 0,05 0 + 0,41 0,05 0,13 Drive penetration gauge body code inc
30、hes aR0 1,168 0,38 0,2 B0 R1 2,235 0,51 0,3 B1 R2 3,607 0,79 0,46 B2 R3 5,334 0,94 0,56 B3 R4 7,95 42,88 1,57 22,22 9,55 28,6 0,79 14,27 B4 R5 12,725 48,16 2,39 31,75 19,08 28,8 1,04 19,05 B5 aFor information and comparison purposes only. BSISO14281:20025IS:18241 O2002(E) 6 I SO 2002 All irthgs erse
31、devra) Components b) Zero position determination 1 Dial indicator AMES Model 214-25J or equivalent Graduations: 0,01 Range: 25 Continuous dial reading counter-clockwise with revolution counter 2 Gauge collar 3 Gauge point 4 Gauge body 5 Setscrew M6-4g6g 8 long, hexagon socket, plain cup point 6 Gaug
32、e body identification marking aUsed only with gauge body R5 Figure 3 Configuration Drive penetration gauge assembly BSISO14281:20026IS:18241 O2002(E) I SO 2002 All irthgs ersedevr 7Bibliography 1 ISO 1101: 1) , Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orie
33、ntation, location and run-out 2 ISO 12256: 2) , Aerospace Drives, internal, cruciform, ribbed Metric series 3 ISO 14279:2002, Aerospace Drives, internal, cruciform Metric series 1) To be published. (Revision of ISO 1101:1983) 2) To be published. BSISO14281:20027BS ISO 14281:2002 BSI 389 Chiswick Hig
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