SKF - Spherical Plain Bearings and Rod Ends

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SKF – the knowledge engineering company From the company that invented the self-aligning ball bearing more than 100 years ago, SKF has evol ved into a knowledge engin eering company that is able to draw on five technology platforms to create unique solutions for its custom ers. These platforms include bearings, bearing units and seals, of course, but extend to other areas including: lubricants and lubrication sys tems, critical for long bearing life in many appli cations; mecha tronics that combine mech anical and electron ics knowledge into systems for more effective linear motion and sensorized solutions; and a full range of services, from design and logistics support to con dition monitoring and reliability systems. Though the scope has broadened, SKF continues to maintain the world’s leadership in the design, manufacture and marketing of rolling bearings, as well as complementary products such as radial seals. SKF also holds an increasingly important position in the market for linear motion products, high-precision aerospace bearings, machine tool spindles and plant maintenance services. The SKF Group is globally certified to ISO 14001, the international standard for envi r o n- mental management, as well as OHSAS 18001, the health and safety manage ment standard. Individual divisions have been ap proved for quality certification in ac cord ance with ISO 9001 and other customer specific requirements. With over 100 manufacturing sites worldwide and sales companies in 70 countries, SKF is a truly international corporation. In addition, our 15 000 distributors and dealers around the world, an e-business marketplace, and a global distribution system, put SKF closer to customers to enhance their ability to quickly supply both products and services. In essence, SKF solutions are available wherever and whenever customers need them. Over all, the SKF brand and the corporation are stronger than ever. As the knowledge engin eering company, we stand ready to serve you with world-class product competencies, intellectual resources, and the vision to help you succeed. Seals Bearings and units Lubrication systems Mechatronics Services 8
Evolving by-wire technology SKF has a unique expertise in the fast-growing by-wire technology, from fly-by-wire, to drive-by-wire, to work-by-wire. SKF pioneered practical fly-by-wire technology and is a close working partner with all aerospace industry leaders. As an example, virtually all aircraft of the Airbus design use SKF by-wire systems for cockpit flight control. © Airbus – photo: e x m company, H. Goussé SKF is also a leader in automotive by-wire technology, and has partnered with automotive engineers to develop two concept cars, which employ SKF mechatronics for steering and braking. Further by-wire development has led SKF to produce an all-electric forklift truck, which uses mechatronics rather than hydraulics for all controls. 9
Page 1 and 2: SKF spherical plain bearings and ro
Page 3 and 4: Principles of selection and applica
Page 5 and 6: 6 Rod ends requiring maintenance...
Page 7 and 8: Foreword Many applications require
Page 9: Unit conversions Quantity Unit Conv
Page 13: Maintaining a 350 km/h R&D lab In a
Page 16 and 17: General product information Propert
Page 18 and 19: General product information Bearing
Page 20 and 21: General product information Mainten
Page 22 and 23: General product information Multi-p
Page 24 and 25: General product information Dam gat
Page 27 and 28: Principles for selection and applic
Page 29 and 30: Selection of bearing type 1 Bearing
Page 31 and 32: Bearing design Radial spherical pla
Page 33 and 34: Bearing design Maintenance-free rad
Page 35 and 36: Angular contact spherical plain bea
Page 37 and 38: Bearing design Rod ends with a thre
Page 39 and 40: Maintenance-free rod ends with a th
Page 41 and 42: static load factor K 0 († table 4
Page 43 and 44: Combined load Fig. 6 Load When cons
Page 45 and 46: Angular contact spherical plain bea
Page 47 and 48: Requisite bearing size To determine
Page 49 and 50: For intermittent movement, the angl
Page 51 and 52: Diagram 8 pv diagrams for steel/PTF
Page 53 and 54: Basic rating life calculation Steel
Page 55 and 56: Diagram 14 Multiplication factor f
Page 57 and 58: Diagram 16 Temperature factor b 2 f
Page 59 and 60: Table 7 Load condition factor b 1 f
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Maintenance-free steel/PTFE FRP sli
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Variable load and sliding velocity
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Because this life is shorter than t
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3. A 320-bar hydraulic cylinder on
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4. Linkages of a conveyor installat
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Friction 1 The friction in a spheri
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For heavier loads a tighter interfe
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Shaft fits Operating conditions Tol
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Axial location of bearings Locating
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Shaft and housing fillet dimensions
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Sealing Most bearing arrangements m
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Table 7 External seals for spherica
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Table 8 Recommended dimensions for
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Diagram 1 The SKF traffic light con
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SKF recommends using SKF LGHB 2 gre
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Rod ends requiring maintenance Stee
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1 SKF has the appropriate greases f
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Plane of fracture or split and main
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Rod ends Rod ends are fitted on pin
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Fig. 3 Dismounting a bearing using
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Radial spherical plain bearings req
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Radial spherical plain bearings req
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Radial spherical plain bearings, st
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Radial spherical plain bearings wit
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Maintenance-free radial spherical p
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Table 1 Dimensional tolerances for
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Table 3 Design of maintenance-free
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Table 6 Radial internal clearance f
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r a D a d a 3.1 Dimensions Abutment
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r a D a d a 3.2 GEH .. TX(G3)E-2LS
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r a d a 3.2 Dimensions Abutment and
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Page 145 and 146:
Page 147 and 148:
145 r a D a d a 3.4 Dimensions Abut
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147 r a D a d a 3.4 Dimensions Abut
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Angular contact spherical plain bea
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Angular contact spherical plain bea
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Maintenance-free angular contact sp
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Thrust spherical plain bearings Dim
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Materials Shaft and housing washers
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163 5
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d a r a r a D a Dimensions Abutment
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Rod ends requiring maintenance SKF
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Rod ends requiring maintenance Perm
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Rod ends with a female thread, stee
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Rod ends with a female thread, for
Page 178 and 179:
Rod ends with a female thread, for
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Rod ends with a male thread, steel/
Page 182 and 183:
Rod ends with a cylindrical section
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Rod ends with a rectangular section
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Rod ends with a female thread, stee
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Rod ends with a male thread, steel/
Page 191 and 192:
Maintenance-free rod ends Dimension
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Tolerances SKF rod end inner ring d
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193 7
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Dimensions d d k d 4 l 3 l 4 l 5 l
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Dimensions d d k l 1 l 2 l 7 r 1 mi
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Dimensions d d k d 4 l 3 l 4 l 5 l
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Dimensions d d k l 1 l 2 l 7 r 1 mi
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Dimensions d d k d 3 d 4 l 3 l 4 l
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Dimensions d d k l 1 l 2 r 1 min ma
Page 210 and 211:
Other SKF plain bearings and specia
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Other SKF plain bearings and specia
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Product index Designation Product P
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