1、Aerospace series - Bush, plain, in corrosion resisting steel with self-lubricating liner - Dimensions and loads BS EN 2287:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2287 August 2017 ICS 49.030.99 Super
2、sedes EN 2287:1989 English Version Aerospace series - Bush, plain, in corrosion resisting steel with self-lubricating liner - Dimensions and loads Srie arospatiale - Bagues cylindriques en acier rsistant la corrosion garniture autolubrifiante - Dimensions et charges Luft- und Raumfahrt - Buchse ohne
3、 Flansch aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung - Mae und Belastungen This European Standard was approved by CEN on 2 July 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
4、status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French
5、, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, C
6、roatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, T
7、urkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
8、. Ref. No. EN 2287:2017 E National foreword This British Standard is the UK implementation of EN 2287:2017. It supersedes BS EN 2287:1990, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems. A list of org
9、anizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited
10、2017 ISBN 978 0 580 98090 9 ICS 49.030.99 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017. Amendments/corrigenda issued since publication Date
11、 Text affected BRITISH STANDARD BS EN 2287:2017 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2287 August 2017 ICS 49.030.99 Supersedes EN 2287:1989 English Version Aerospace series - Bush, plain, in corrosion resisting steel with self-lubricating liner - Dimensions and loads Srie arospatiale
12、 - Bagues cylindriques en acier rsistant la corrosion garniture autolubrifiante - Dimensions et charges Luft- und Raumfahrt - Buchse ohne Flansch aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung - Mae und Belastungen This European Standard was approved by CEN on 2 July 2017. CEN me
13、mbers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applica
14、tion to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manag
15、ement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
16、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenu
17、e Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2287:2017 E BS EN 2287:2017EN 2287:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Required characteristics 4 3.1
18、 Configuration Dimensions Masses 4 3.2 Surface roughness . 4 3.3 Materials . 4 4 Designation 8 5 Marking . 8 6 Technical specification 8 7 Design recommendation 9 BS EN 2287:2017EN 2287:2017 (E) 3 European foreword This document (EN 2287:2017) has been prepared by the Aerospace and Defence Industrie
19、s Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CE
20、N. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. Attention is drawn to the possibility that s
21、ome of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 2287:1989. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following c
22、ountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
23、 Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 2287:2017EN 2287:2017 (E) 4 1 Scope This European Standard specifies the characteristics of plain bushes in corrosion resisting steel with self-lubricating liner and the design re
24、commendation of shafts and housings. The bushes are intended for operation within the temperature range of 55 C to 163 C and assembly with an interference fit into fixed and moving aerospace parts. 2 Normative references The following documents, in whole or in part, are normatively referenced in thi
25、s document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2136, Aerospaces Steel FE-PM 42, 900 MPa R m 1100 MPa, bars D e 100 mm 1)EN 2311, A
26、erospace series Bushes with self-lubricating liners Technical specification EN 2539, Aerospace series Steel FE-PM3801 (X5CrNiCu17-4) Air melted Solution annealed and precipitation treated Bar, a or D 200 mm, R m 965 MPa 2)3 Required characteristics 3.1 Configuration Dimensions Masses Configuration:
27、according to Figure 1. Dimensions, masses: according to Figure 1 and Table 1. 3.2 Surface roughness According to Figure 1. 3.3 Materials Bush: Steel according to EN 2136 or EN 2539. Liner: Self-lubricating wear resistant material consistent with the requirements of EN 2311. 1) Published as ASD-STAN
28、Standard at the date of publication of this standard. http:/www.asd-stan.org/ 2) Published as ASD-STAN Prestandard at the date of publication of this standard. BS EN 2287:2017EN 2287:2017 (E) 5 Dimensions in millimetres Key a 0,50 mm to 0,75 mm b chamfer machined before bonding c chamfer or radius a
29、t manufacturers option d chamfer machined after bonding Figure 1 BS EN 2287:2017EN 2287:2017 (E) 6 Table 1 Dimensions in millimetres d D l 0,1/ 0,4 Nominal size Tolerances m Nominal size Tolerances m 6 8 10 12 15 16 18 20 22 25 28 30 32 35 40 45 50 Mass in kg/1 000 pieces . 6 +22 +410 +24 +152,4* 8
30、+27 +512 +29 +183,0 4,0* 10 14 3,5 4,7 5,9* 12 +33 +616 4,1 5,5* 6,9 8,3* 15 19 +35 +226,7 8,4* 10,1 12,6* 16 20 7,1 8,9 10,7 13,4 14,3 18 22 9,9 11,8 14,8 17,8 20 +40 +725 13,9 16,7* 20,9 27,8* 22 26 14,2 17,8* 23,7 26,1* 25 30 20,4 25,5* 34,0 37,4 42,5* 28 34 +42 +2634,5 46,0* 50,6 57,5 64,4 30 36
31、 36,7 49,0 53,8 61,2 73,4* 32 +48 +938 39,0 51,9 57,1 64,9 77,90 83,1 35 42 66,6* 73,5 83,6 100,3 117,0* 40 48 87,0 103,8 130,0* 152,2 174,0* 45 52 +51 +32105,0 126,0 147,0* 168,0 189,0* 50 58 133,5 160,2 186,9 214,0* 240,3 267,0* Only bushes whose masses lie within the bold lines are standard. The
32、recommended sizes are indicated by *. BS EN 2287:2017EN 2287:2017 (E) 7 Table 2 d l d l d l Permissible radial load Permissible radial load Permissible radial load Static Dynamic Static Dynamic Static Dynamic s a 25 b s a 25 b s a 25 bmm mm kN kN mm mm kN kN mm mm kN kN 6 6 10,3 4,1 20 15 111,8 44,7
33、 32 30 385,3 153,8 8 6 13,8 5,5 20 154,8 61,8 32 412,8 164,8 8 20,6 8,3 22 12 94,6 37,7 35 20 270,9 108,2 10 6 17,2 6,8 15 123,0 49,1 22 301,0 120,2 8 25,8 10,3 20 170,3 68,0 25 346,0 138,2 10 34,4 13,8 22 189,2 75,5 30 421,4 168,3 12 6 20,6 8,3 25 12 107,5 42,9 35 496,7 198,3 8 31,0 12,3 15 139,8 5
34、5,8 40 20 309,6 123,6 10 41,3 16,5 20 193,5 77,3 25 395,6 157,9 12 51,6 20,6 22 215,0 85,8 30 481,6 192,3 15 8 38,7 15,4 25 247,3 98,8 35 567,6 226,6 10 51,6 20,6 28 15 156,5 62,5 40 653,6 260,9 12 64,5 25,8 20 216,7 86,5 45 25 445,1 177,7 15 83,9 33,5 22 240,8 96,2 30 541,8 216,3 16 8 41,3 16,5 25
35、276,9 110,6 35 638,6 254,9 10 55,0 22,0 28 313,0 125,0 40 735,3 293,6 12 68,8 27,5 30 15 167,7 66,9 45 832,1 332,1 15 89,4 35,7 20 232,2 92,7 50 25 494,5 197,4 16 96,3 38,4 22 258,0 103,0 30 602,0 240,3 18 10 61,9 24,8 25 296,7 118,4 35 709,5 283,3 12 77,4 30,9 30 361,2 144,2 40 817,0 326,2 15 100,6
36、 40,2 32 15 178,9 71,4 45 924,5 369,1 18 123,8 49,4 20 247,7 98,9 50 1032,0 412,0 20 10 68,8 27,5 22 275,2 109,8 12 86,0 34,3 25 315,5 126,3 a s = 0,43 d (l &2) kN Based on a unit pressure of 430 MPa.b 25 = s 2, 5kN Definitions of all loads are given in EN 2311. BS EN 2287:2017EN 2287:2017 (E) 8 4 D
37、esignation EXAMPLE NOTE 1 The number of characters is constant, Zero (0) is inserted to the left of the figure when the diameter d or length l is less than 10. NOTE 2 If necessary, the code I9905 shall be placed between the description block and the identity block NOTE 3 Parts manufactured before th
38、e issue of this standard shall be accepted without technology code. Table 3 Technology code Technology A bonded fabric liner B injection moulded liner without code Both technologies can be used at users convenience 5 Marking In addition to the manufacturers own marking, each bush and its package sha
39、ll be marked with the identity block specified in clause 4 of this standard. The technology used by the manufacturer shall be stated within the identity block. Marking position and method are at manufacturers option and shall not have any detrimental effect on the bush. Bushes which are too small to
40、 be marked with the full information required shall have this on the package only. 6 Technical specification According to EN 2311. BS EN 2287:2017EN 2287:2017 (E) 9 7 Design recommendation Bushes defined by this standard are intended to be installed by interference fit methods (see Figure 2). Theref
41、ore, the loads given in Table 2 can only be ensured if the following mounting is applied. Key 1 shaft 2 bush 3 housinga housing diameter D H7 b shaft diameter d f6 Figure 2 Hardness of the shaft: 50 HRC min. Surface roughness of the shaft: according to Figure 2. The reduction in bore diameter d (see
42、 Figure 1), due to interference fit of the bush in the housing, has been taken into account when selecting tolerances for the shaft: f6 (clearance fit). When applied in actual usage, the coefficient of friction under load could be different from that defined in EN 2311, since it depends on the follo
43、wing shaft definitions: Material, hardness, surface finish, surface treatment and installation conditions. BS EN 2287:2017This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, i
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