Hydraulic seals - SKF

1 Hydraulic seals SKF, ECOPUR, H-ECOPUR, S-ECOPUR, X-ECOPUR, XH-ECOPUR, FLUOROTREL, LUBRITHANE, seal JET, SPECTRASEAL, TEFLATHANE and X-SLIDE are registered trademarks of the SKF is a trademark of Apple Inc., registered in the US and other Play is a trademark of Google Inc. SKF Group 2014 The contents of this publication are the copyright of the pub-lisher and may not be reproduced (even extracts) unless prior written permission is granted. Every care has been taken to en-sure the accuracy of the information contained in this publication but no liability can be accepted for any loss or damage whether direct, indirect or consequential arising out of the use of the in-formation contained SE/P1 12393/2 EN August 2014 This publication supersedes publication image(s) used under license from mobile appsSKF mobile apps are available from both Apple App Store and Google Play.

2 These apps provide useful information and allow you to make critical calculations, providing SKF Knowledge Engineering at your your catalogueYou can get updates for this catalogue via email if you register at Apple App StoreGoogle PlaySKF Hydraulic seals general technical information .. 21 Piston seals .. 45 Rod and buffer seals .. 111 Wiper seals .. 207 Guide rings and guide strips .. 249O-rings and back-up rings .. 291 Other fluid power applications .. 347 Product index .. 352112345678 Unit conversions .. 4 Foreword .. 5 This is SKF .. 8 SKF the knowledge engineering company .. 10 Introduction to fluid power .. 12 Hydraulic cylinders .. 13 Cylinder classification.. 14 Hydraulic seals and guides .. 14 SKF Hydraulic seals and guides capabilities .. 16 Customized sealing solutions .. 16 SKF seal JET system .. 17 Criteria for seal selection.

3 181 SKF Hydraulic seals general technical information .. 21 Specifications for effective sealing systems .. 22 Gap extrusion .. 34 Storage .. 36 Installation and assembly .. 382 Piston seals .. 45 Product MPV, metric sizes .. DPV, inch sizes .. LPV, metric sizes .. CPV, inch sizes .. GH, metric sizes .. 67 GH, inch sizes .. APR, metric sizes .. 77 APR, inch sizes .. LCP, metric sizes .. 83 LCP, inch sizes .. LTP, inch sizes .. CUT, metric sizes .. SCP, inch sizes .. MD-L, metric sizes .. UNP, metric sizes .. 103 UNP, inch sizes .. 105 Content23 Rod and buffer seals .. 111 Product S1S, metric sizes .. ZBR, metric sizes .. 127 ZBR, inch sizes .. SIL, metric sizes .. PTB, metric sizes .. 139 PTB, inch sizes .. STD, inch sizes.

4 DZ, metric sizes .. 179 DZ, inch sizes .. DZR, metric sizes .. 185 DZR, inch sizes .. RBB, metric sizes .. 189 RBB, inch sizes .. S9B, metric sizes .. 193 S9B, inch sizes .. RSB, inch sizes .. 1994 Wiper seals .. 207 Product PA, metric sizes .. MCW, metric sizes .. 221 MCW, inch sizes .. PAD and PADV, metric sizes .. DTW, metric sizes .. 229 DTW, inch sizes .. DX, inch sizes .. HW, metric sizes .. 241 HW, inch sizes .. 2435 Guide rings and guide strips .. 249 Product WAT rod or piston guide rings, metric sizes .. WAT rod or piston guide rings, inch sizes .. RGR rod guide rings, metric sizes .. PGR piston guide rings, metric sizes .. 2806 O-rings and back-up rings .. 291 Product OR O-rings in static radial sealing, metric sizes .. OR O-rings in static radial sealing, inch sizes.

5 STR Back-up rings in static radial sealing, metric sizes .. STR Back-up rings in static radial sealing, inch sizes by dash-number, metric dimensions .. STR Back-up rings in static radial sealing, inch sizes by dash-number .. 3387 Other fluid power applications .. 3478 Product index .. 3523 Unit conversionsUnit conversionsQuantityUnitConversion Lengthinch1 ,40 mmfoot1 ,3048 myard1 ,9144 mmile1 ,609 kmSpeed, velocityfoot per second1 ft/s1 ft/s0,30480 m/sfoot per minute1 f t /min1 ft/min0,00508 m/smile per hour1 mph1 mph1,609 km/hForcepound-force1 ,4482 NPressure, stresspounds per square inch1 MPa145 psi1 psi6,8948 103 Pa1 N/mm2145 psi1 psi1 psi0,068948 barTemperaturedegreeCelsiustC = (tF 32)FahrenheittF = 1,8 tC + 324 ForewordThis catalogue contains the standard assort-ment of SKF Hydraulic seals and guides typic-ally used in Hydraulic cylinders.

6 To provide the highest levels of quality and customer service, these products are available worldwide through SKF sales channels. For information about lead times and deliveries, contact your local SKF representative or SKF Authorized catalogue reflects SKF s state-of-the-art technology and production capabilities as of 2014. The data contained within may differ from that shown in earlier catalogues because of redesign, technological developments, or revised calculation methods. SKF reserves the right to continuously improve its products with respect to materials, design and manufactur-ing methods, some of which are driven by technological startedIntroduction to fluid power provides an over-view over Hydraulic cylinder types and classi-fication, a reference to SKF customized solu-tions and standard assortment of Hydraulic seals and guides. The first chapter contains general technical information.

7 seal counter-surface finish properties, materials, fluid media and gap extrusion are discussed in detail. Furthermore, product storage and installation information is valuesSince several factors simultaneously affect the sealing system and seal performance, all stated values in graphs and tables in this pub-lication should be considered as guidelines only and not as absolute values for practical overviewProfileDescriptionAddi tional information pagePr MPVP olyurethane slide ring, nitrile rubber ener-gizer; suitable for heavy duty applications5058(metDPVP olyurethane slide ring, nitrile rubber ene r-gizer; fits wi de, shall ow inch size housings; suit able for heavy duty applications5160(inch)LPVP olyether based polyurethane slide ring, nitrile rubber ene rgizer; suitable for light to medium duty applications5162(metrCPVP olyurethane slid egizer.))

8 Piston sealsHow best to use this catalogueThe catalogue follows an easy principle: Introduction to fluid power ( pages 12 to 18) provides basic information about Hydraulic seals . Chapter 1 ( pages 21 to 43) provides general technical information, such as counter-surface finish properties, materi-als, fluid media. Chapters 2 to 6 provide product type specific information. If applicable, a profile overview at the beginning shows the different profiles with a brief description and reference to more information inside the chapter. Product type and profile characteristics are discussed in detail. The profile data tables provide product specifications per profile followed by the relevant product tables with dimen-sions per item. At the end of the chapter more profiles of the specific type are out-lined, including examples of the machined seal profiles manufactured with the SKF seal JET technology.

9 Chapter 7 ( pages 347 to 351) provides some information on other types of fluid power seals used both in Hydraulic cylinders and other applications. Chapter 8 contains the product index ( page 352) sorted by the product details quicklyBlue tabs on each right hand page show the chapter or product table quick way to access detailed product data is via the product table numbers. They are listed in the full table of contents at the front of the catalogue, in the table of contents of each product chapter and in the product +0 . 0 0 2 0 .8 8 9 0 . 0 0 1 0 .1 2 80 .1 4 90 .0 1 5 0 .1 2 5 GH1A-1187-AD1+0 . 0 0 2 0 .9 2 7 0 . 0 0 2 0 . 0 8 3 0 .1 3 0 .0 1 5 0 .1 GH0D-1187-AD1+0 . 0 0 2 1 .0 1 3 0 . 0 0 1 0 . 0 8 3 0 . 0 8 70 .0 1 5 0 .0 8 GH0A-1187-AD15+0 . 0 0 2 0 .9 5 2 0 . 0 0 1 0 .1 2 80 .1 4 90 .0 1 5 0 .1 2 5 GH1A-1250-AD1+0 . 0 0 2 0.

10 9 9 0 . 0 0 2 0 . 0 8 3 0 .1 3 0 .0 1 5 0 .1 GH0D-1250-AD1+0 . 0 0 2 1 .0 7 6 0 . 0 0 1 0 . 0 8 3 0 . 0 8 70 .0 1 5 0 .0 8 GH0A-1250-AD1+0 . 0 0 2 1 .0 1 4 0 . 0 0 10 .1 2 80 .1 4 90 .0 1 5 0 .1 2 5 GH1A-1312-AD1+0 . 0 0 2 1 .0 5 2 0 . 0 0 2 0 . 0 8 3 0 .1 3 0 .0 1 5 0 .1 GH0D-1312-AD1+0 . 0 0 2 1 . 1 3 8 0 . 0 0 1 0 . 0 8 3 0 . 0 8 70 .0 1 5 0 .0 8 GH0A-1312-AD1+0 . 0 0 2 1 .0 7 7 0 . 0 0 1 0 .1 2 80 .1 4 90 .0 1 5 0 .1 2 5 GH1A-1375-AD1+0 . 0 0 2 1 . 1 1 5 0 . 0 0 2 0 . 0 8 3 0 .1 3 0 .0 1 50 .1 GH0D-1375-AD1+0 . 0 0 2 1 . 2 0 1 0 . 0 0 1 0 . 0 8 3 0 . 0 8 70 .0 1 5 0 .0 8 GH0A-1375-AD1+0 . 0 0 2 1 . 1 3 9 0 . 0 0 1 0 .1 2 80 .1 4 90 .0 1 5 0 .1 2 5 GH1A-1437-AD1+0 . 0 0 2 1 . 1 7 7 0 . 0 0 2 0 . 0 8 3 0 .1 3 0 .0 1 50 .1 GH0D-1437-AD1+0 . 0 0 2 1 . 2 6 3 0 . 0 0 1 0 . 0 8 3 0 . 0 8 7 0 .0 1 5 0 .0 8 GH0A-1437-AD1+0.