1、January 2011 Translation by DIN-Sprachendienst.English price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 23.100.20!$m,V“1740951www.din.deDDIN ISO 8139Pneumatic fluid power Cylinders, 1 000 kPa (10 bar) series Mounting dimensions of rod-end spherical eyes (ISO 8139:2009)English translation of DIN ISO 8139:2011-01Fluidtechnik Pneumatikzylinder, 1 000-kPa-(10-bar-)Reihe Anschlussmae fr Gelenkkpfe (ISO 81
3、39:2009)Englische bersetzung von DIN ISO 8139:2011-01Transmissions pneumatiques Vrins, srie 1 000 kPa (10 bar) Dimensions dinterchangeabilit des tenons rotule dextrmit de tige (ISO 8139:2009)Traduction anglaise de DIN ISO 8139:2011-01SupersedesDIN ISO 8139:2008-01www.beuth.deDocument comprises pages
4、In case of doubt, the German-language original shall be considered authoritative.70 .11 2A comma is used as the decimal marker. Contents Page National foreword .2 Introduction .3 1 Scope 4 2 Normative references 4 3 Terms and definitions4 4 Mounting dimensions5 5 Application instructions6 5.1 Instal
5、lation 6 5.2 Beari g life.6 5.3 Lubrication .6 6 Example of ordering designation.6 7 Identification statement (reference to this International Standard)6 Bibliography 7 National foreword This standard has been prepared by Technical Committee ISO/TC 131 “Fluid power systems”, Subcommittee SC 3 “Cylin
6、ders”, Working Group WG 2 “Pneumatic cylinder mounting dimensions”. The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-36-21-01 AK Pneumatische Antriebe. For the International Standards w
7、hich have not been published as DIN ISO or DIN EN ISO Standards with the same number, there are no national standards available. Amendments This standard differs from DIN ISO 8139:2008-01 as follows: a) normative references have been updated, i.e. ISO 286-2 has been transferred to the Bibliography a
8、nd ISO 6431 has been replaced by ISO 15552; b) the letter symbols in Figure 1 and Table 1 have been brought in line with ISO 6099; c) size M24 2 (rod-end spherical eyes) has been deleted from Table 1. Previous editions DIN ISO 8139: 1990-12, 2008-01 2 DIN ISO 8139:2011-01 Introduction In pneumatic f
9、luid power systems, power is transmitted and controlled through a gas under pressure within a circuit. One component of such systems is the pneumatic fluid power cylinder. This is a device that converts power into linear mechanical force and motion. It consists of a movable element, i.e. a piston an
10、d piston rod, operating within a cylindrical bore. Pneumatic fluid power Cylinders, 1 000 kPa (10 bar) series Mounting dimensions of rod-end spherical eyes 3 DIN ISO 8139:2011-01 1 Scope This International Standard specifies the mounting dimensions required for interchangeability of rod-end spherica
11、l eyes of pneumatic cylinders. The rod-end spherical eyes have been designed specifically for use with 1 000 kPa 10 bar1) series cylinders manufactured in accordance with ISO 6430, ISO 6432 and ISO 15552, but this does not limit their application. The spherical bearing end eyes are used on piston ro
12、ds of pneumatic cylinders for mechanically transmitting the cylinder force under oscillatory rotational and tilting movements. The design of the rod-end spherical eyes is based on the maximum forces resulting from the specified internal diameter of the cylinders and pressure according to ISO 6430, I
13、SO 6432 and ISO 15552. 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 referenced document (including any amendments) applies. ISO
14、 5598, Fluid power systems and components Vocabulary ISO 6099, Fluid power systems and components Cylinders Identification code for mounting dimensions and mounting types ISO 6430, Pneumatic fluid power Single rod cylinders, 1 000 kPa (10 bar) series, with integral mountings, bores from 32 mm to 250
15、 mm Mounting dimensions ISO 6432, Pneumatic fluid power Single rod cylinders 10 bar (1 000 kPa) series Bores from 8 to 25 mm Mounting dimensions ISO 15552, Pneumatic fluid power Cylinders with detachable mountings, 1 000 kPa (10 bar) series, bores from 32 mm to 320 mm Basic, mounting and accessories
16、 dimensions 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. The identification code for mounting dimensions and mounting types is in accordance with ISO 6099. 1) 1 bar = 100 kPa = 105Pa; 1 Pa = 1 N/m2. 4 DIN ISO 8139:2011-01 4 Mounting di
17、mensions See Figure 1 and Table 1. Figure 1 AP6 Rod-end spherical eyes Table 1 Dimensions of AP6 Rod-end spherical eyes Dimensions in millimetres KK CN EN CH LF EF AV Tilting angleZ H9 h12 min. max. min. min. degree M4 0,7 5 8 27 10 9 10 M6 1 6 9 30 11 10 12 M8 1,25 8 12 36 13 12 16 M10 1,25 10 14 4
18、3 15 14 20 M12 1,25 12 16 50 17 16 22 M16 1,5 16 21 64 22 21 28 M20 1,5 20 25 77 26 25 33 M27 2 30 37 110 36 35 51 M36 2 35 43 125 41 40 56 M42 2 40 49 142 46 45 60 M48 2 50 60 160 59 58 65 4 5 DIN ISO 8139:2011-01 5 Application instructions 5.1 Installation 5.1.1 Usually a tolerance of m6 (see ISO
19、286-2) is used for the shaft fitting the spherical plain bearing bore. However, in exceptional cases (for example cylinder installation difficulties), a tolerance of f7 can be admitted. In this instance, a case-hardened shaft is recommended as movement occurs between the shaft and the bearing bore.
20、Lubrication shall then be effected through the shaft. 5.1.2 The specified tilting angle of 4 can still be obtained when the clevis inner faces abut the side faces of the inner ring of the spherical plain bearing. 5.1.3 The rod-end spherical eyes shall be locked with a locking nut. 5.2 Bearing life 5
21、.2.1 The life of the spherical plain bearing is influenced by many factors such as specified load, direction of load, angle of oscillation, type of lubricant and frequency of lubrication. 5.2.2 The spherical plain bearings are designed to give an acceptable bearing life under normal operating condit
22、ions. 5.2.3 Where a constant unidirectional load is applied or other unusual operating conditions exist, consultation with the supplier is recommended. 5.3 Lubrication 5.3.1 Sufficient lubrication shall be provided for the satisfactory performance of the rod-end spherical eyes. 5.3.2 The method and
23、frequency of such lubrication depend on the particular operating conditions. 6 Example of ordering designation A rod-end spherical eye with a bore of CN = 20 mm and steel-on-steel surface shall be designated as follows: Rod eye spherical ISO 8139 20 7 Identification statement (reference to this Inte
24、rnational Standard) It is strongly recommended to manufacturers who have chosen to conform to this International Standard that the following statement be used in test reports, catalogues and sales literature: “Pneumatic cylinder rod-end spherical eye mounting dimensions in accordance with ISO 8139:2
25、009, Pneumatic fluid power Cylinders, 1 000 kPa (10 bar) series Mounting dimensions of rod-end spherical eyes.” 6 DIN ISO 8139:2011-01 Bibliography 1 ISO 286-2, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts 7 DIN ISO 8139:2011-01
