Lubrication and Reliability Handbook 2010 Part 7 doc

... preserve plant and machinery in a condition in which it can operate, and can do so safely and economically. It is the components of plant and machinery which fail individually, and can lead to ... bushes and thrust bearings, filled PTFE/metal and filled graphite/metal combinations are often used – see Table 30.8. Safety Aspects of safety are summarised in Table 30 .7. Ball bear...

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... in machine operation and maintenance of all kinds of machinery and plant. This Page Intentionally Left Blank

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... requirements of the system may demand their use. Additives and certain contaminants may create potential corrosion problems. Tables 7. 3 and 7. 4 give a guide to additive and bearing material requirements, ... metal, carbon and polymer bearing materials. As proprietary coatings produced by vacuum deposition, plasma spraying, particle impingement, or electrophoresis. A7 Plain bearing...

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... local conditions and environment) A8 Rolling bearing lubrication A8.3 Calculation of relubrication interval The relubrication period for ball and roller bearings may be estimated using Figures 8.1 and 8.2. ... be taken into account for economic rationalisation A7Plain bearing lubrication A7.4 Figure 7. 3 Oil grooves in journal bearings A10Wire rope lubrication A10.3 Manual – By c...

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... rating appropriately sized and spaced to provide correct total LU rating for the component. Table 17. 3 Lubrication unit rating Figure 17. 1 Drill size and orifice ratings Table 17. 4 Pipe sizes A15 Total ... removal A14 Selection of lubrication systems A14.4 Table 14 .7 General selection by component. Operating conditions and environment Selection of gear lubrication systems A 1...

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... Selection of heaters and coolers A23.1 Lubricating oil heaters and coolers are available in many different forms. The most common type uses steam or water for heating or cooling the oil, and consists ... varies with the heat flow rate and the oil velocity, for a typical industrial steam heated lubricating oil heater, and is based on: Heating medium Dry saturated steam at 70 0 kN/m...

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... may be excessive Table 28.6 Particle sizes of common materials as a guide to the specification of seals and air filters A27Running-in procedures A 27. 3 In research and development the following ... schedules. Figure 27. 2(a) Un-run cylinder liner ؋140 Figure 27. 2(b) Run-in cylinder liner ؋ 140 A25 Selection of warning and protection devices A25.1 Satisfactory operation of a centralise...

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... corresponding to various components and problems B5 Wear debris analysis B5.6 Severe sliding wear Severe sliding wear particles range in size from 20 ␮m and larger. Some of these particles have surface striations as ... displacement and frequency and is thus likely to relate to fatigue stresses. The normal procedure is to measure the vertical, horizontal and axial vibration of a bea...

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... patterns and analysis B10.6 Figure 10 .7 gives an example for 17 plain thrust bearing failures on three centrifugal air compressors. The ␤ value of 0 .7 suggests a combination of early-life and random ... motion, often with embedded particles and haloes. Causes Dirt particles in lubricant exceeding the minimum oil film thickness. Foreign matter Characteristics Severe scoring and er...

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... crown and ring land damage Characteristics The crown may show cracking and the crown land and lands between the rings may show major distortion, often with the ring ends digging in to the lands. Causes Major ... due to excessive clearance between housing and shaft Figure 15.11 Packed gland showing abnormal leakage outside the gland follower Figure 15.12 Packed gland showing uneven com...

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