ISO INTERNATIONAL STANDARD 14728-1 Second edition 2017-02 Rolling bearings Linear motion rolling bearings - Part 1: Dynamic load ratings and rating life Roulements - Roulements a mouvement linéaire - Partie 1: Charges dynamiques de base et durée nominale Reference number ISO 14728-1:2017(E) [so International Organization for Standardization @ IS0 2017 ZHEJIANG INSTOFSTANDARDIZATION C15956617 HS under ed without license from IHS IS0 14728-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 0111 Fax+41227490947 copyright@iso.org www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved I by IHS unde Not for Resale, 2017/5/11 02:24:25 etworking permitted without license from IHS IS0 14728-1:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions ..1 4 Symbols. .7 5 Basic dynamic load ratings .8 5.1 Linear ball bearings .8 5.1.1 Recirculating linear ball bearings, sleeve type with raceway grooves. .8 5.1.2 Recirculating linear ball bearings, sleeve type without raceway grooves .9 5.1.3 Recirculating linear ball bearings, linear guideway, carriage type. ..9 5.1.4 Non-recirculating linear ball bearings, linear guideway, deep groove and four-point-contact types. .10 5.2 Linear roller bearings .11 5.2.1 Recirculating linear roller bearings, linear guideway, carriage type. 11 5.2.2 Non-recirculating linear roller bearings, linear guideway, flat, V-angle and crossed roller types. 11 6 Dynamic equivalent load ..12 7 Basic rating life. ..12 Bibliography 14 iii ZHEJIANG INST OF STANDARDIZATION C15956617 vided by IHS underI thout license from IHS