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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12532:1999 The Euro
2、pean Standard EN 12532:1998 has the status of a British Standard ICS 21.180; 53.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Castors and wheels Castors and wheels for applications up to 1,1 m/s (4 km/h) BS EN 12532:1999 This British Standard, having been prepared under
3、the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 March 1999 BSI 03-1999 ISBN 0 580 30646 1 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English l
4、anguage version of EN 12532:1998. The UK participation in its preparation was entrusted to Technical Committee MHE/7, Industrial trucks Safety, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or
5、 proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement
6、international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to inc
7、lude all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the
8、EN title page, pages 2 to 12, an inside back cover and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any mea
9、ns reserved worldwide for CEN national Members. Ref. No. EN 12532:1998 E EUROPEAN STANDARDEN 12532 NORME EUROPE ENNE EUROPA ISCHE NORM September 1998 ICS 21.180; 53.060 Descriptors: wheels, castors, handling equipment, characteristics, product requirements, dimensions, tests, conformity tests, marki
10、ng English version Castors and wheels Castors and wheels for applications up to1,1m/s (4km/h) Roues et roulettes Roues et roulettes pour des applications jusqua 1,1 m/s (4 km/h) Ra der und Rollen Transportgera terollen bis zu einer Geschwindigkeit von 1,1 m/s (4 km/h) This European Standard was appr
11、oved by CEN on 30 August 1998 CEN members 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
12、standards may be obtained on application to the Central Secretariat 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 notifie
13、d to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
14、United Kingdom. Page 2 EN 12532:1998 BSI 03-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 324, Castors and wheels, the Secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an iden
15、tical text or by endorsement, at the latest by March 1999, and conflicting national standards shall be withdrawn at the latest by March 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standa
16、rd: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Dimensions and classification3
17、 4.1Fixing system3 4.2Offset6 4.3Wheel7 4.4Load capacity8 5Requirements8 5.1Standard conditions8 5.2Initial wheel play9 5.3Initial swivel play9 5.4Electrical resistance test10 5.5Fatigue test for braking and/or locking device10 5.6Efficiency check of wheel braking and/or locking device10 5.7Efficien
18、cy check of swivel braking and/or locking device10 5.8Static test11 5.9Dynamic test11 5.10 Efficiency check of wheel braking and/or locking device11 5.11 Efficiency check of swivel braking and/or locking device11 5.12 Final wheel play11 5.13 Final swivel play11 6Conformity12 7Marking of the product1
19、2 7.1Product marking12 7.2Marking of electrically conductive castor(s) or wheel(s)12 Page 3 EN 12532:1998 BSI 03-1999 1 Scope This European Standard specifies the technical requirements, the appropriate dimensions and the requirements for testing. This European Standard applies to castors and wheels
20、 (which may include accessories) for manually propelled or power towed industrial applications up to 1,1 m/s (4 km/h). This European Standard does not apply to castors and wheels for furniture, swivel chairs, institutional, hospital beds and driven applications 2 Normative references This European S
21、tandard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
22、 only to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 12526:1998, Castors and wheels Vocabulary, recommended symbols and multilingual dictionary. EN 12527:1998, Castors and wheels Te
23、st methods and apparatus. ISO 7619, Rubber Determination of indentation hardness by means of pocket hardness meters. 3 Definitions For the purpose of this European Standard, definitions and recommended symbols of EN 12526:1998 apply. 4 Dimensions and classification The characteristics of a castor ar
24、e: fixing system (4.1); offset (4.2); wheel (4.3); load capacity (4.4). 4.1 Fixing system The fixing system includes top plate, solid stem and single bolt fixing. 4.1.1 Top plate Top plates are identified by classification and include triangular with three fixing holes and rectangular top plates wit
25、h four fixing holes. 4.1.1.1 Triangular top plate with three fixing holes The design of the outer profile is left to the manufacturer, provided that it is inscribed in a square of maximum size A 3 A as in Table 1 and Figure 1. The fixing holes are located at the corners of a triangle inscribed in th
26、e outer profile. The holes may be oblong and form slots, provided the width of the slot is suitable for a bolt of diameter (G1) as in Table 1. Table 1 lists the standardized dimensions of the different classes of top plates, showing for each the corresponding wheel diameter (D) where it is applicabl
27、e. Figure 1 Triangular top plate 4.1.1.2 Rectangular top plate with four fixing holes The design of the outer profile is left to the manufacturer, provided that it is inscribed in a rectangle of maximum size A 3 B as in Table 2 and Figure 2. The fixing holes are located at the corners of a rectangle
28、 inscribed in the outer profile. The holes may be oblong and form slots, provided the width of the slot is suitable for bolts of diameter (G1) as in Table 2. Table 2 lists the standardized dimensions of the different classes of top plates, showing for each the corresponding wheel diameter (D) where
29、it is applicable. Page 4 EN 12532:1998 BSI 03-1999 Table 1 Triangular top plate Dimensions in millimetres ClassMaximum plate dimension Bolt hole spacingBolt diameter Minimum distance of slotted hole centres Corresponding wheel diameter (A 3 A)(a 3 a)(G1)(g)(D) T4175 3 75556550 63 75/80 100 T42115 3
30、1158081150 63 75/80 100 125 T43145 3 14510581163 75/80 100 125 150/160 200 T44145 3 14510510963 75/80 100 125 150/160 200 T45175 3 1751401017125 150/160 200 250 300 T46175 3 1751401214125 150/160 200 250 300 Figure 2 Rectangular top plate Page 5 EN 12532:1998 BSI 03-1999 Table 2 Rectangular top plat
31、e Dimensions in millimetres ClassMaximum plate dimensions Bolt hole spacingBolt diameterCorresponding wheel diameter (A 3 B)(a 3 b)(G1)(D) R4175 3 6055 3 40650 63 R42115 3 8580 3 60850 63 75/80 100 125 150/160 R43145 3 110105 3 8010 or 1275/80 100 125 150/160 200 250 R44175 3 140140 3 10510 or 12125
32、 150/160 200 250 300 R45200 3 160160 3 12012 or 14200 250 300 350 400 R46255 3 205210 3 16014 or 16200 250 300 350 400 500 4.1.2 Solid stem Table 3 specifies the solid stem diameters corresponding to the wheel diameter. The length of the solid stem must be at least 1,5 times its diameter. In those c
33、ases where the solid stem is supplied with a cross hole for fixing to a tubular structure, the axis of such hole shall be at a 19 mm0,25 mm (distance measured from the collar of the stem) threaded to M8(as in Figure 3a) or bored to 8 mm + 0,3 mm (as in Figure 3b). Figure 3a Solid stem castor with th
34、readed fixing hole Page 6 EN 12532:1998 BSI 03-1999 Figure 3b Solid stem castor with plain fixing hole Table 3 Solid stem diameter Dimensions in millimetres Wheel diameter (D) Stem dimensions Diameter (P) Tolerance 5020 22 6320 22 75/8020 22 10020 20,3 0 22 12522 27 150/16022 27 20027 25027 30027 4.
35、1.3 Single bolt fixing Table 4 specifies the bolt diameters (G2) for single bolt fixing corresponding to the wheel diameter (D). Table 4 Bolt diameters for single bolt fixing Dimensions in millimetres Wheel diameterBolt diameter (D)(G2) 508 10 638 10 75/8010 12 10010 12 12510 12 150/16012 16 20 2001
36、2 16 20 25016 20 30020 4.2 Offset Table 5 specifies the minimum and maximum offset values (F) for the swivel castors, corresponding to the wheel diameter (D), as in Figure 4. Figure 4 Offset Page 7 EN 12532:1998 BSI 03-1999 Table 5 Offset Dimensions in millimetres Wheel diameter (D) Offset (F) Minim
37、umMaximum 501030 631240 75/801550 1002060 1252570 150/1603085 20040100 25050115 30060130 35070140 40080150 500100170 NOTEFor shock absorbing castors the offset may vary from the dimensions stated. 4.3 Wheel The characteristics of a wheel are: diameter (see Table 6); hub width (see Table 6); bore dia
38、meter (see Table 6); load capacity (4.4). The characteristics of the wheel are illustrated in Figure 5 and the hub width (T1) and bore diameter (d) corresponding to each wheel diameter (D) are listed in Table 6. Wheels are not restricted to these hub widths and bores when used in castors. Figure 5 W
39、heel dimensions Table 6 Wheel dimensions Dimensions in millimetres Wheel diameterHub widthBore diameters* (D)(T1)(d) 50308 10 63308 10 75/80 308 10 12 15 45/5012 15 100 308 10 12 15 45/5012 15 20 125 45/5012 15 20 6020 25 150/160 45/5020 25 6020 25 30 200 45/5020 25 6020 25 30 7520 25 30 35 40 9025
40、30 35 40 12030 35 40 50 Page 8 EN 12532:1998 BSI 03-1999 Table 6 Wheel dimensions (continued) Dimensions in millimetres Wheel diameterHub widthBore diameters* (D)(T1)(d) 250 6025 30 75/9025 30 35 40 12030 35 40 50 300 6025 30 35 7525 30 35 40 9025 30 35 40 50 12035 40 50 350 9025 30 35 40 50 12035 4
41、0 50 400 9025 30 35 40 50 12035 40 50 500 9025 30 35 40 50 12035 40 50 * The user of a wheel must verify the mechanical strength of axle components (bolts, nuts, bushes, spacers etc.). The above bores refer to the nominal diameter of the axle. 4.3.1 Wheel diameter tolerance The tolerance on the whee
42、l diameter (D) is1 %. 4.3.2 Hub width tolerance The tolerance on the hub width (T1) is% with a 22 0 minimum value of 1 mm. 4.4 Load capacity Maximum load, in N, which can be carried by a wheel or a castor so as to fully comply to the required acceptance criteria. 5 Requirements Testing requirements
43、for castors and wheels are listed below. Test procedures and apparatus are defined in EN 12527:1998. 5.1 Standard conditions 5.1.1 Environmental conditions Tests have to be carried out at a temperature between 15 8C and 28 8C. During the 24 h prior to the test the sample(s) shall remain at the above
44、 temperature, in an environment with a relative humidity between 40 % and 70 %. Sample(s) shall not be artificially cooled during testing. 5.1.2 Test sequence Tests, where applicable, shall be carried out in the sequence as listed in Table 7. Page 9 EN 12532:1998 BSI 03-1999 Table 7 Test sequence fo
45、r castor and wheel types ReferenceTest sequenceCastors and wheel typesTest procedures reference 5.2Initial wheel playAll castors4.2 5.3Initial swivel playSwivel castors with or without accessories 4.3 5.4Electrical resistanceCastors and wheels electrically conductive4.4 5.5Fatigue test for braking a
46、nd/or locking devices Castors with a: wheel locking/braking device; directional locking device; total locking/braking device; central locking/braking device. If device is operated by means of threaded mechanism this test will not be applicable. 4.5 5.6Efficiency check of wheel braking and/or locking
47、 device Castors with a: wheel locking/braking device; total locking/braking device; central locking/braking device. 4.6 5.7Efficiency check of swivel braking and/or locking device Castors with a: directional locking/braking device; total locking/braking device; central locking/braking device. 4.7 5.
48、8Static testTest is not required4.9 5.9Dynamic testAll4.8 5.10Efficiency check of wheel braking and/or locking device Castors with a: wheel locking/braking device; total locking/braking device; central locking/braking device. 4.6 5.11Efficiency check of swivel braking and/or locking device Castors w
49、ith a: directional locking/braking device; total locking/braking device; central locking/braking device. 4.7 5.12Final wheel playAll castors4.2 5.13Final swivel playSwivel castors with or without accessories 4.3 5.2 Initial wheel play 5.2.1 Test objectives, apparatus and procedures Detailed in 4.2 of EN 12527:1998. 5.2.2 Acceptance criteria The measured initial wheel play shall not exceed the value (W1). SymbolValueDescription Dvariablewheel diameter W11 % of
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