1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12533:1999 The Euro
2、pean Standard EN 12533:1998 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 over 1,1 m/s (4 km/h) and up to 4,4 m/s (16 km/h)BS EN 12533:1999 This British Standard, h
3、aving been prepared under 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 30645 3 Amendments issued since publication Amd. No. Date Text affected National foreword This Briti
4、sh Standard is the English language version of EN 12533:1998. 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 enquiri
5、es on the interpretation, or 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 Britis
6、h Standards which implement 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
7、Standard does not purport to 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 co
8、ver, an inside front cover, the EN title page, pages 2 to 9 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
9、 any means reserved worldwide for CEN national Members. Ref. No. EN 12533:1998 E EUROPEAN STANDARD EN 12533 NORME EUROPE ENNE EUROPA ISCHE NORM September 1998 ICS 21.180; 53.060 Descriptors: wheels, castors, handling equipment, characteristics, product requirements, dimensions, conformity tests, mar
10、king English version Castors and wheels Castors and wheels for applications over 1,1 m/s (4 km/h) and up to 4,4 m/s (16 km/h) Roues et roulettes Roues et roulettes pour des applications a plus de 1,1 m/s (4 km/h) et jusqua 4,4 m/s (16 km/h) Ra der und Rollen Ra der und Rollen fu r eine Geschwindigke
11、it u ber 1,1 m/s (4 km/h) und bis zu 4,4 m/s (16 km/h) This European Standard 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 an
12、y alteration. Up-to-date lists and bibliographical references concerning such national 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
13、 translation under the responsibility of a CEN member into its own language and 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, Ire
14、land, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 12533:1998 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 Stand
15、ard shall be given the status of a national standard, either by publication of 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 standard
16、s organizations of the following countries are bound to implement this European 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
17、Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Dimensions and classification 3 4.1 Top plate 3 4.2 Offset 4 4.3 Wheel 4 4.4 Load capacity 5 5 Requirements 6 5.1 Standard conditions 6 5.2 Initial wheel play 7 5.3 Initial swivel play 7 5.4 Electrical resistance test 7 5.5 Fatigue test
18、 for braking and/or locking device 7 5.6 Efficiency check of wheel braking and/or locking device 7 5.7 Efficiency check of swivel braking and/or locking device 8 5.8 Static test 8 5.9 Dynamic test 8 5.10 Efficiency check of wheel braking and/or locking device 9 5.11 Efficiency check of swivel brakin
19、g and/or locking device 9 5.12 Final wheel play 9 5.13 Final swivel play 9 6 Conformity 9 7 Marking of the product 9 7.1 Product marking 9 7.2 Marking of electrically conductive castor(s) or wheel(s) 9Page 3 EN 12533:1998 BSI 03-1999 Figure 1 Rectangular top plate 1 Scope This European Standard spec
20、ifies the technical requirements, the appropriate dimensions and the requirements for testing. This European Standard applies to castors and wheels (which may include accessories) specifically for manually propelled or power towed industrial applications at speeds over 1,1 m/s (4 km/h) and up to 4,4
21、 m/s (16 km/h). Pneumatic wheels and drive wheels are excluded from this standard. 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 publicat
22、ions are listed hereafter. For dated references, subsequent amendments 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 12526:1
23、998, Castors and wheels Vocabulary, recommended symbols and multilingual 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, defin
24、itions and recommended symbols of EN 12526:1998 apply. The castors and wheels are divided into three categories: A, B and C. These categories define three increasing speed ratings and are listed in Table 1. Table 1 Categories Category A B C Speed m/s (km/h) 1,7 (6) 2,8 (10) 4,4 (16) 4 Dimensions and
25、 classification The characteristics of a castor are: top plate (4.1); offset (4.2); wheel (4.3); load capacity (4.4). 4.1 Top plate Rectangular top plates are used with four fixing holes. The design of the outer profile is left to the manufacturer, provided that it is inscribed in a rectangle of max
26、imum size A3 B as in Table 2 and Figure 1. The 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 dimensio
27、ns of the different classes of top plates.Page 4 EN 12533:1998 BSI 03-1999 Table 2 Rectangular top plate Dimensions in millimetres Class Maximum plate dimensions Bolt hole spacing Bolt diameter (A3 B)( a 3 b )( G 1 ) R51 1603 120 1053 80 10 12 R52 1803 160 1403 105 10 12 14 16 R53 2303 180 1603 120
28、12 14 16 20 R54 2703 230 2103 160 14 16 20 4.2 Offset Table 3 specifies the minimum and maximum offset values (F) for the swivel castors, corresponding to the wheel diameter (D), as in Figure 2. Figure 2 Offset Table 3 Offset Dimensions in millimetres Wheel diameter Offset (D)( F ) Minimum Maximum 1
29、25 25 75 150/160 30 95 200 40 120 250 50 150 280/300 55 180 350/360 70 215 400 80 240 450 90 270 500 100 300 NOTE For shock absorbing castors the offset may vary from the dimensions stated. 4.3 Wheel The characteristics of a wheel are: diameter (see Table 4); hub width (see Table 4); bore diameter (
30、see Table 4); load capacity (4.4). The characteristics of the wheel are illustrated in Figure 3 and the hub width (T 1 ) and bore diameter (d) corresponding to each wheel diameter (D) are listed in Table 4. Wheels are not restricted to these hub widths and bores when used in castors. Figure 3 Wheel
31、dimensionsPage 5 EN 12533:1998 BSI 03-1999 Table 4 Wheel dimensions Dimensions in millimetres Wheel diameter Hub width Bore diameters* (D)( T 1 )( d ) 125 50 20 25 60 20 25 150/160 60 20 25 200 60 20 25 75 25 90 25 30 250 60 25 30 75 25 30 90 25 30 140 30 40 280 60 25 30 75 25 30 90 25 30 300 90 25
32、30 35 120 35 40 350/360 75 30 40 90 35 40 Table 4 Wheel dimensions (continued) Dimensions in millimetres Wheel diameter Hub width Bore diameters* (D)( T 1 )( d ) 400 75 30 35 40 90 35 40 120 40 50 140 40 50 450 90 40 50 120 60 500 90 40 50 120 60 160 60 * The users must verify the mechanical strengt
33、h 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 1,5 %. 4.3.2 Hub width tolerance The tolerance on the hub width (T 1 )i s % . 2 2 0 4.4 Load capacity Maximum
34、 load, in N, which can be carried by a wheel or a castor so as to fully comply to the required acceptance criteria.Page 6 EN 12533:1998 BSI 03-1999 Table 5 Test sequence for castor and wheel types Reference Test sequence Castors and wheel types Test procedures references 5.2 Initial wheel play All c
35、astors 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 device Castors with a: wheel locking/braking device; directional locking device; total locking/brakin
36、g device; central locking/braking device. 4.5 If device is operated by means of threaded mechanism this test will not be applicable. 5.6 Efficiency check of wheel braking and/or locking device Castors with a: wheel locking/braking device; total locking/braking device; central locking/braking device.
37、 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 This test is not required 4.9 5.9 Dynamic test All castors 4.8 5.10 Efficiency check of wheel brakin
38、g 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/brak
39、ing 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 Requirements Testing requirements for castors and wheels are listed below. Test apparatus and procedures are defined in EN 12527:1998. 5.1 Standard conditions 5.1.1 Environme
40、ntal 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 not be artificially cooled during testing. 5.1
41、.2 Test sequence Tests, where applicable, shall be carried out in the sequence as listed in Table 5.Page 7 EN 12533:1998 BSI 03-1999 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 shal
42、l not exceed the value (W 1 ). Symbol Value Description D variable wheel diameter W 1 0,5 % of D maximum initial wheel play 5.3 Initial swivel play 5.3.1 Test objectives, apparatus and procedures Detailed in 4.3 of EN 12527:1998. 5.3.2 Tolerances The tolerances are: of the swivel play: lever of 200
43、mm use to measure the play: 2 mm; angle of rotation of swivelling by 908: 58. 5.3.3 Acceptance criteria The measured initial swivel play shall not exceed the value (S 1 ). Symbol Value Description S 1 3 mm maximum initial swivel play 5.4 Electrical resistance test 5.4.1 Test objectives, apparatus an
44、d procedures Detailed in 4.4 of EN 12527:1998. 5.4.2 Test values The test values are listed below. Symbol Value Description L 1 variable load capacity L 17 10 % of L 1 test load R variable measured electrical resistance 5.4.3 Tolerances The tolerance is: Symbol Tolerance Unit Acceptable L 1 N % 0 +2
45、 L 17 N % 0 +2 5.4.4 Acceptance criteria The resistance R of the sample tested shall be: conductive castor(s) or wheel(s): R# 10 4 V antistatic castor(s) or wheel(s): 10 5 # R# 10 7 V 5.5 Fatigue test for braking and/or locking device 5.5.1 Test objectives, apparatus and procedures Detailed in 4.5 o
46、f EN 12527:1998. 5.5.2 Test values The test values are listed below. Symbol Value Description E 1 5 000 number of locking actions E 2 10 cycles per min L 1 not required in this test load capacity as test load 5.5.3 Tolerances The tolerances are: Symbol Tolerance Unit Acceptable E 1 number % 0 +1 E 2
47、 cycles/min 22 0 5.5.4 Acceptance criteria The test is passed if there is no wear and/or permanent deformation which adversely affects the performance of the sample. 5.6 Efficiency check of wheel braking and/or locking device 5.6.1 Test objectives, apparatus and procedures Detailed in 4.6 of EN 1252
48、7:1998. 5.6.2 Test values The test values are listed below. Symbol Value Description L 1 variable load capacity as test load K 1 15 % of L 1 horizontal tractive force 5.6.3 Tolerances The tolerances are: Symbol Tolerance Unit Acceptable L 1 N % 0 +2 K 1 N % 0 +4 The tolerance of the time of applicat
49、ion of force K 1 (10 s) is: s. 0 +2 5.6.4 Acceptance criteria No revolving movement of the castor around its axis is allowed when the force K 1 is applied.Page 8 EN 12533:1998 BSI 03-1999 Symbol Value Description L 1 variable load capacity as test load* n 1 see Table 6 average speed n 2 see Table 6 speed at impact h 1 height of obstacles for wheels with: tread hardness$ 908 Shore A: 2,5 % of D tread hardness 908 Shore A: 5,0 % of D height of the obs
