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 t
3、he 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. Date Text affected National foreword This British Standard is the English
4、language 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, o
5、r 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 t
7、o include 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,
8、 the 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
9、 means reserved worldwide for CEN national Members. Ref. No. EN 12532:1998 E EUROPEAN STANDARD EN 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,
10、marking English version Castors and wheels Castors and wheels for applications up to 1,1 m/s (4 km/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
11、was approved 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 n
12、ational 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
13、 notified 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, Switzerl
14、and and 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
15、an identical 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
16、 Standard: 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 Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Dimensions and
17、classification 3 4.1 Fixing system 3 4.2 Offset 6 4.3 Wheel 7 4.4 Load capacity 8 5 Requirements 8 5.1 Standard conditions 8 5.2 Initial wheel play 9 5.3 Initial swivel play 9 5.4 Electrical resistance test 10 5.5 Fatigue test for braking and/or locking device 10 5.6 Efficiency check of wheel brakin
18、g and/or locking device 10 5.7 Efficiency check of swivel braking and/or locking device 10 5.8 Static test 11 5.9 Dynamic test 11 5.10 Efficiency check of wheel braking and/or locking device 11 5.11 Efficiency check of swivel braking and/or locking device 11 5.12 Final wheel play 11 5.13 Final swive
19、l play 11 6 Conformity 12 7 Marking of the product 12 7.1 Product marking 12 7.2 Marking of electrically conductive castor(s) or wheel(s) 12Page 3 EN 12532:1998 BSI 03-1999 1 Scope This European Standard specifies the technical requirements, the appropriate dimensions and the requirements for testin
20、g. This European Standard applies to castors and wheels (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 dri
21、ven applications 2 Normative references This European Standard 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 amendm
22、ents to or revisions of any of these publications apply 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 multil
23、ingual dictionary. EN 12527:1998, Castors and wheels Test 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 Dimension
24、s and classification The characteristics of a castor are: 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
25、 with three fixing holes and rectangular top plates with 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 A3 A as in Table 1 and Figure 1. The fixing holes ar
26、e located at the corners of a triangle inscribed in the outer profile. The holes may be oblong and form slots, provided the width of the slot is suitable for a bolt of diameter (G 1 ) as in Table 1. Table 1 lists the standardized dimensions of the different classes of top plates, showing for each th
27、e corresponding wheel diameter (D) where it is applicable. 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 A3 B as in Table 2 and Figure 2. The
28、 fixing holes are located at the corners of a rectangle 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 (G 1 ) as in Table 2. Table 2 lists the standardized dimensions of the different classes of top plates, sho
29、wing for each the corresponding wheel diameter (D) where it is applicable.Page 4 EN 12532:1998 BSI 03-1999 Table 1 Triangular top plate Dimensions in millimetres Class Maximum plate dimension Bolt hole spacing Bolt diameter Minimum distance of slotted hole centres Corresponding wheel diameter (A3 A)
30、( a 3 a )( G 1 )( g )( D ) T41 753 75 55 6 5 50 63 75/80 100 T42 1153 115 80 8 11 50 63 75/80 100 125 T43 1453 145 105 8 11 63 75/80 100 125 150/160 200 T44 1453 145 105 10 9 63 75/80 100 125 150/160 200 T45 1753 175 140 10 17 125 150/160 200 250 300 T46 1753 175 140 12 14 125 150/160 200 250 300 Fi
31、gure 2 Rectangular top platePage 5 EN 12532:1998 BSI 03-1999 Table 2 Rectangular top plate Dimensions in millimetres Class Maximum plate dimensions Bolt hole spacing Bolt diameter Corresponding wheel diameter (A3 B) (a3 b) (G 1 ) (D) R41 753 60 553 40 6 50 63 R42 1153 85 803 60 8 50 63 75/80 100 125
32、 150/160 R43 1453 110 1053 80 10 or 12 75/80 100 125 150/160 200 250 R44 1753 140 1403 105 10 or 12 125 150/160 200 250 300 R45 2003 160 1603 120 12 or 14 200 250 300 350 400 R46 2553 205 2103 160 14 or 16 200 250 300 350 400 500 4.1.2 Solid stem Table 3 specifies the solid stem diameters correspond
33、ing to the wheel diameter. The length of the solid stem must be at least 1,5 times its diameter. In those cases 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 mm 0,25 mm (distance measured from the collar of the stem) thre
34、aded to M 8 (as in Figure 3a) or bored to 8 mm + 0,3 mm (as in Figure 3b). Figure 3a Solid stem castor with threaded fixing holePage 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
35、 Diameter (P) Tolerance 50 20 22 63 20 22 75/80 20 22 100 20 20,3 0 22 125 22 27 150/160 22 27 200 27 250 27 300 27 4.1.3 Single bolt fixing Table 4 specifies the bolt diameters (G 2 ) for single bolt fixing corresponding to the wheel diameter (D). Table 4 Bolt diameters for single bolt fixing Dimen
36、sions in millimetres Wheel diameter Bolt diameter (D) (G 2 ) 50 8 10 63 8 10 75/80 10 12 100 10 12 125 10 12 150/160 12 16 20 200 12 16 20 250 16 20 300 20 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 Fi
37、gure 4. Figure 4 OffsetPage 7 EN 12532:1998 BSI 03-1999 Table 5 Offset Dimensions in millimetres Wheel diameter (D) Offset (F) Minimum Maximum 50 10 30 63 12 40 75/80 15 50 100 20 60 125 25 70 150/160 30 85 200 40 100 250 50 115 300 60 130 350 70 140 400 80 150 500 100 170 NOTE For shock absorbing c
38、astors 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 diameter (see Table 6); load capacity (4.4). The characteristics of the wheel are illustrated in Figure 5 and the hub width (T 1 ) and bore diame
39、ter (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 Wheel dimensions Table 6 Wheel dimensions Dimensions in millimetres Wheel diameter Hub width Bore diameters* (D)( T 1 )( d ) 50 30 8 10 63 30
40、 8 10 75/80 30 8 10 12 15 45/50 12 15 100 30 8 10 12 15 45/50 12 15 20 125 45/50 12 15 20 60 20 25 150/160 45/50 20 25 60 20 25 30 200 45/50 20 25 60 20 25 30 75 20 25 30 35 40 90 25 30 35 40 120 30 35 40 50Page 8 EN 12532:1998 BSI 03-1999 Table 6 Wheel dimensions (continued) Dimensions in millimetr
41、es Wheel diameter Hub width Bore diameters* (D)( T 1 )( d ) 250 60 25 30 75/90 25 30 35 40 120 30 35 40 50 300 60 25 30 35 75 25 30 35 40 90 25 30 35 40 50 120 35 40 50 350 90 25 30 35 40 50 120 35 40 50 400 90 25 30 35 40 50 120 35 40 50 500 90 25 30 35 40 50 120 35 40 50 * The user of a wheel must
42、 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 wheel diameter (D)i s 1% . 4.3.2 Hub width tolerance The tolerance on the hub width (T 1 ) is % with
43、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 for castors and wheels are listed below. Test procedures and apparatus are defined in EN 1252
44、7:1998. 5.1 Standard conditions 5.1.1 Environmental conditions Tests have to be carried out at a temperature between 158C and 288C. During the 24 h prior to the test the sample(s) shall remain at the above temperature, in an environment with a relative humidity between 40 % and 70 %. Sample(s) shall
45、 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 for castor and wheel types Reference Test sequence Castors and wheel types Test procedures referen
46、ce 5.2 Initial wheel play All castors 4.2 5.3 Initial swivel play Swivel castors with or without accessories 4.3 5.4 Electrical resistance Castors and wheels electrically conductive 4.4 5.5 Fatigue test for braking and/or locking devices Castors with a: wheel locking/braking device; directional lock
47、ing 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 5.6 Efficiency check of wheel braking and/or locking device Castors with a: wheel locking/braking device; total locking/braking device;
48、 central locking/braking device. 4.6 5.7 Efficiency 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 5.8 Static test Test is not required 4.9 5.9 Dynamic test All 4.8 5.10 Efficiency ch
49、eck of wheel braking and/or locking device Castors with a: wheel locking/braking device; total locking/braking device; central locking/braking device. 4.6 5.11 Efficiency 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 5.12 Final wheel play All castors 4.2 5.13 Final swivel play Swivel castors with or without accessories 4.3 5.2 Initial wheel
