1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 5753-2:2010Rolling bearings InternalclearancePart 2: Axial internal clearance for four-point-contact ball bearingsBS ISO 5753-2:2010 BRITISH STANDARDNational forewordThis
2、British Standard is the UK implementation of ISO 5753-2:2010.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/7, Rolling bearings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inclu
3、de all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 62109 3ICS 21.100.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy an
4、d Strategy Committee on 31 January 2011.Amendments issued since publicationDate Text affectedBS ISO 5753-2:2010Reference numberISO 5753-2:2010(E)ISO 2010INTERNATIONAL STANDARD ISO5753-2First edition2010-12-15Rolling bearings Internal clearance Part 2: Axial internal clearance for four-point-contact
5、ball bearings Roulements Jeu interne Partie 2: Jeu interne axial pour roulements billes quatre points de contact BS ISO 5753-2:2010ISO 5753-2:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall
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10、7 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 5753-2:2010ISO 5753-2:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
11、bodies). The work of preparing 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
12、and non-governmental, 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 Directive
13、s, Part 2. The main task 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 c
14、asting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 5753-2 was prepared by Technical Committee ISO/TC 4, Rolling bearings, Subcommitte
15、e SC 4, Tolerances. ISO 5753 consists of the following parts, under the general title Rolling bearings Internal clearance: Part 1: Radial internal clearance for radial bearings Part 2: Axial internal clearance for four-point-contact ball bearings BS ISO 5753-2:2010ISO 5753-2:2010(E) iv ISO 2010 All
16、rights reservedIntroduction Four-point-contact ball bearings are radial single-row angular contact ball bearings with raceways that are designed to support axial loads in both directions. The axial clearance values apply to bearings supporting pure axial load in both directions, which are not mounte
17、d or preloaded and are not being subjected to any external load (i.e. with no measuring load being applied). Depending on the design of the bearing and verification method, some dispersion of the results of measurements can be experienced due to verification uncertainties. Manufacturers and users ar
18、e expected to take this into consideration. BS ISO 5753-2:2010INTERNATIONAL STANDARD ISO 5753-2:2010(E) ISO 2010 All rights reserved 1Rolling bearings Internal clearance Part 2: Axial internal clearance for four-point-contact ball bearings 1 Scope This part of ISO 5753 specifies values of axial inte
19、rnal clearance for four-point-contact ball bearings with contact angle of 35. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refe
20、renced document (including any amendments) applies. ISO 1132-1:2000, Rolling bearings Tolerances Part 1: Terms and definitions ISO 5593, Rolling bearings Vocabulary ISO 15241, Rolling bearings Symbols for quantities 3 Terms and definitions For the purposes of this document, the terms and definitions
21、 given in ISO 1132-1, ISO 5593 and the following apply. NOTE For the convenience of users of this part of ISO 5753, the following definitions are reproduced. 3.1 axial internal clearance Gabearing capable of taking axial load in both directions, non-preloaded arithmetical mean of the axial distances
22、 through which one of the rings may be displaced relative to the other, from one axial extreme position to the opposite extreme position, without being subjected to any external load NOTE 1 The mean value includes displacements with the rings in different angular positions relative to each other and
23、 with the set of rolling elements in different angular positions in relation to the rings. NOTE 2 For a measurement to be valid, at each limiting axial position of the rings in relation to each other, their relative radial position, and the position of the rolling elements relative to the raceways,
24、shall be such that the one ring has actually assumed the extreme axial position in relation to the other ring. ISO 1132-1:2000, definition 8.2.1 BS ISO 5753-2:2010ISO 5753-2:2010(E) 2 ISO 2010 All rights reserved3.2 four-point-contact ball bearing single-row angular contact ball bearing in which, wh
25、en under purely radial load, each loaded ball makes contact with each of the two raceways at two points NOTE 1 Under pure axial load on the bearing, each ball makes contact with each raceway at one point only. NOTE 2 This bearing is used as a thrust bearing even though its nominal contact angle is g
26、enerally less than 45. NOTE 3 Adapted from ISO 5593:1997, definition 01.05.09. 4 Symbols For the purposes of this document, the symbols given in ISO 15241 and the following apply. The symbols (except those for clearance values) and the values given in Table 1 denote nominal dimensions, unless specif
27、ied otherwise. d bore diameter of inner ring Gaaxial internal clearance contact angle 5 Axial internal clearance for four-point-contact ball bearings The axial internal clearance values for four-point-contact ball bearings, with bore diameter of inner ring up to and including 1 000 mm, are given in
28、Table 1. BS ISO 5753-2:2010ISO 5753-2:2010(E) ISO 2010 All rights reserved 3Table 1 Four-point-contact ball bearings with contact angle of 35 Clearance values in micrometres d Gamm Group 2 Group N Group 3 Group 4 u min. max. min. max. min. max. min. max. 10 18 15 65 50 95 85 130 120 165 18 40 25 75
29、65 110 100 150 135 185 40 60 35 85 75 125 110 165 150 200 60 80 45 100 85 140 125 175 165 215 80 100 55 110 95 150 135 190 180 235 100 140 70 130 115 175 160 220 205 265 140 180 90 155 135 200 185 250 235 300 180 220 105 175 155 225 210 280 260 330 220 260 120 195 175 250 230 305 290 360 260 300 135
30、 215 195 275 255 335 315 390 300 350 155 240 220 305 285 370 350 430 350 400 175 265 245 330 310 400 380 470 400 450 190 285 265 360 340 435 415 510 450 500 210 310 290 390 365 470 445 545 500 560 225 335 315 420 400 505 485 595 560 630 250 365 340 455 435 550 530 645 630 710 270 395 375 500 475 600
31、 580 705 710 800 290 425 405 540 520 655 635 770 800 900 315 460 440 585 570 715 695 840 900 1 000 335 490 475 630 615 770 755 910 BS ISO 5753-2:2010ISO 5753-2:2010(E) ICS 21.100.20 Price based on 3 pages ISO 2010 All rights reserved This page deliberately left blankBSI is the independent national b
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