2 1/2010 The total or partial reproduction of this technical catalogue is prohibited without prior permission. We cannot accept responsability for errors or omissions. The reported dimensions and measures are not binding. We reserve the opportunity to change measures and dimensions at any time without notice. HEADQUARTERS 40069 Zola Predosa - Bologna - Italy - via Giacomo Brodolini, 6/8/10 Tel. +39 051 75.87.67 - Fax +39 051 75.47.80 Fax ufficio commerciale +39 051 616.51.26 e.mail: [email protected] www.chiavette.it OFFICE 20020 Cesate - Milano - Italy - via Piave, 144 Tel. +39 02 49.79.23.41...

3 A Company Certified According to UNI EN ISO 9001:2008 Chiavette Unificate SpA sells its products worldwide and is located in Italy close to Bologna. The Company started its activities over 55 years ago: since then Chiavette always tried to follow the requirements and the developments of this sector and offers products that made and continue to make the history of the Company. From the craft stage during the first years to the industrial production based on high technology, we manufacture mechanical components, which are necessary for the motion of different systems and machineries. The company...

INDEX 4 Electrolytic coatings 6 Standards comparison table 7 Rod ends and spherical bearings. Introduction. Choice of the rod end and spherical bearing 9 Criteria of use 13 Tolerances 14 Joint clearance 15 Rod ends protections 16 Threaded pin for rod ends 17 TESCUBAL® steel on steel self-lubricating rod ends and spherical bearings Product description 18 Rod ends TOP version DIN ISO12240-4 Series K Series CF – CM 19 Rod ends OK version DIN ISO12240-4 Series K Series CF OK – CM OK 22 Rod ends STAINLESS STEEL version DIN ISO12240-4 Series K Series CFX – CMX 25 Spherical bearings TOP version DIN...

5 Pins for clevises DIN 71752 Series G, G/FG Series PKS 60 Pins aluminium for clevises DIN 71752 Series GA Series PKSAL 61 Retainers for pins Series PKS, PKSAL Series SL 62 Retainers for pins Series PKS, PKSAL Series KL 63 Pins and circlips DIN 471 for clevises CNOMO Series G/CN Series PC - SE 64 Pins and circlips DIN 471 for clevises DIN 71752 Series G/FG Series PI - SE 65 Pins and circlips DIN 471 STAINLESS STEEL for clevises DIN 71752 Series G/FG INOX Series PI INOX - SE INOX 66 Hexagonal nuts UNI 5588 – 5589 67 BALL JOINTS AND AXIAL JOINTS Product description 68 Technical data 68 Ball joints...

6 MATERIALS AND SURFACE COATINGS This chapter specifies the characteristics required by electrolytic zinc coatings applied on components manufactured by Chiavette Unificate in carbon or tied steel, whose main purpose is to protect against corrosion, classify the types of coating, indicating the criteria of choice and prescribing the information to be put in the drawing. Electrolytic coating S Alternative designation example: A3J Metal/coating alloy designation Symbol Element A Zn Zinc A Coating thickness designation. Coating thickness [ìm] 1 metal coating 2 metals coating 2 5 2+3 3 8 3+5 4 12...

7 MATERIALS AND SURFACE COATINGS Standard material Europe Italy (IT) Germany (DE) France (FR) Sweden (SE) U.K. Spain (ES) U.S.A. W. Nr. EN UNI DIN AFNOR SS B.S. UNE SAE/ AISI 1.1186 C40 C40 Ck40 XC42H1 - 080M40 F1141 1040 1.1191 C45 C45 Ck45 XC 45 1672 080M46 F.1140 1045 1.0603 1 CS 67 C67 C67 XC 65 - 080A67 - 1070 1.0715 11SMn30 CF 9SMn28 9SMn28K S250 1912 230M07 F.2111 12L14 1.0718 11SMnPb30 CF 9SMnPb28 9SMnPb28K S250Pb 1914 - F.2112 12L13 1.0765 36SMnPb14 35SMnPb10 36SMnPb14 35MF6Pb - - F.2132 - 1.3505 100Cr6 100Cr6 100Cr6 100Cr6 2258 2S135 F.1310 52100 1.7033 34Cr4 34Cr4 34Cr4 32C4 - 530A32...

9 self-lubricating rod ends and spherical bearings 2. CHOICE OF ROD ENDS AND SPHERICAL BEARINGS In order to make the appropriate choice of rod ends or spherical bearings it is important to know what their real application will be. The type of load applied, static or dynamic, will be decisive for the correct dimensioning of the rod end or the spherical bearing. 1. INTRODUCTION The rod ends and spherical bearings are mechanical junctions which, because of their internal geometry, are particularly suited for the transmission of static and dynamic forces, together with rotary, oscillatory and tipping...

self-lubricating rod ends and spherical bearings 10 Table 1 INNER RING HOLE DIAMETER LOAD (daN) 5 100 6 120 8 170 10 200 12 270 14 400 16 550 18 580 20 600 22 700 25 800 30 1200 35 1400 40 1650 50 2000 constant load simple dynamic load alternating dynamic load Kf 1 time Kf 0,5 time Kf 0,25 time radial force radial force radial force According to the type of load, it is indispensable to check the permissible stress. Considering the same nominal load, dynamic loads produce greater stress on the rod end than constant loads; it is therefore necessary to introduce the coefficient Kf in the calculation...

11 self-lubricating rod ends and spherical bearings The specific pressure is the one detected between the inner ring and the surface on which it slides. Check that the specific pressure allowed is included within the limits indicated on table 2 d) Specific pressure p allowed: P = Fr • X P = equivalent load ( daN ) Fr = radial load ( daN ) Fa = axial load ( daN ) X = axial load factor determined by the graph p = specific pressure ( daN/mm² ) F = equivalent load applied ( daN ) dk = external diameter of the inner ring ( mm ) C1 = outer ring thickness ( mm ) P p = ———— dk • C1 The average sliding...

self-lubricating rod ends and spherical bearings 12 The operating temperatures of rod ends and spherical bearings are the following ones: Remark: in case of high temperatures, the life of the rod end/spherical bearing will be reduced. g) Operating temperature It is important to point out that the above safety coefficients have been calculated on the basis of the standard use of the units. Where heavier use is made (with strong pulsating loads or compound stresses) or where the personal safety is at risk, it is essential to employ greater safety factors to reduce stress and where necessary practical...