1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 21.100.20 ISBN 0-626-15703-X SANS 3096:2005Edition 1 and ISO tech. corr. 1 ISO 3096:1996Edition 2 and tech. corr. 1 SOUTH AFRICAN NATIONAL STANDARD R
4、olling bearings Needle rollers Dimensions and tolerances This national standard is the identical implementation of ISO 3096:1996 and technical corrigendum 1 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road
5、 groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 3096:2005 Edition 1 and ISO tech. corr. 1 ISO 3096:1996 Edition 2 and tech. corr. 1 Table of changes Change No. Date Scope ISO tech. corr. 1. 1999 Am
6、ended to update the first edition by defining the symbols used and by establishing tolerances. Abstract Specifies dimensions and tolerances for finished steel needle rollers used as rolling elements. Keywords bearings, dimensions, metric series, needle bearings, rolling bearings, specifications, tol
7、erances (measurement). National foreword This South African standard was approved by National Committee StanSA TC 5120.02, Bearings, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. ICS 21.100.20 Ref. No. ISO 3096:1996/Cor.1:1999(E) ISO 19
8、99Printed in SwitzerlandAINTERNATIONAL STANDARD ISO 3096:1996TECHNICAL CORRIGENDUM 1Published 1999-07-15INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATIONRolling bearings Needle rollers Dimensions andtolerancesTECHNICAL CORRIGENDUM 1Roulements Aiguilles Dimen
9、sions et tolrancesRECTIFICATIF TECHNIQUE 1Technical Corrigendum 1 to International Standard ISO 3096:1996 was prepared by Technical CommitteeISO/TC 4, Rolling bearings, Subcommittee SC 5, Needle roller bearings.Page iiThe penultimate paragraph of the Foreword shall read:This second edition cancels a
10、nd replaces the first edition (ISO 3096:1974) which has been technically revised, aswell as ISO 6193:1980 which has been withdrawn. In particular it updates the first edition by defining the symbolsused and by establishing tolerances. Standards South AfricaThis s tandard may only be used and printed
11、 by approved subscription and freemailing clients of the SABS .This page is intentionally left blankINTERNATIONAL STANDARD IS0 3096 Second edition 1996-l 2-l 5 Rolling bearings - Needle rollers - Dimensions and tolerances Roulements - Aiguilles - Dimensions et tolhances Reference number IS0 3096:199
12、6(E) IS - recommended gauges of needle roller; - maximum circularity deviation. In addition, no single diameter within the entire length of a needle roller shall exceed the actual maximum diameter at the middle of its length by more than a) 0,5 pm for grade 2; b) 0,8 pm for grade 3; c) 1 pm for grad
13、e 5. 5.2 Length The tolerance on the single length, L, for needle rollers of all grades shall be h13, see IS0 286-2. 5.3 Chamfer dimension (see figure 1) Chamfer dimension limits for flat end needle rollers of all grades are specified in table 3. 3 IS0 3096: 1996(E) IS0 Table 2 - Variation of gauge
14、lot diameter, preferred gauges and circularity deviation Tolerance values in micrometres upper 0 -I,5 -3 3 -4,5 -6 -7 3 . 1,5 lower -3 -4,5 -6 -7,5 -9 -10 UPPer 0 -3 5 -5 5 2,5 lower -5 -8 -10 NOTES 1 Tolerance values apply only at the middle of the needle roller length. However, each single diamete
15、r of a needle roller shall also comply with the requirement of 5.1. 2 If nothing to the contrary is agreed between the customer and the supplier, needle rollers of any nominal dimensions and any of the quoted grades will be supplied sub-divided into the gauges listed in this table at the discretion
16、of the supplier. Table 3 - Chamfer dimension limits for flat end needle roller Dimensions in millimetres Chamfer dimension limits 5 min 53 max I I I RI Directions radial axial Of3 Q5 1 1,5 RI Q4 0,6 1,5 I 3 I 61 I Q6 I 68 3 6 OJ 03 1 NOTE - The chamfer of a needle roller shall clear a fillet radius
17、equal to rS min. 6 Measurement of circularity deviation Circularity deviation shall be measured at the middle of the needle roller length according to a), annex A, of IS0 4291:1985. In practice, it is usually measured by a numerical evaluation of the needle roller circumference, as recorded on a polar chart which shows the measured circumference. Annex A (informative) Bibliography I IS0 1 132 : 1980, Rolling bearings - Tolerances - Definitions. IS0 3096: 1996(E) Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
