Lubrication and Reliability Handbook 2010 Part 3 potx

... OP 12 .3 requirements. From Turbine to Wind Farms - Technical Requirements and Spin-Off Products 20 limited variable speed wind turbine with a wound rotor induction generator and partial ... Process. From Turbine to Wind Farms - Technical Requirements and Spin-Off Products 32 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.5 1.0 1.5 2.0 2.5 3. 0...

Ngày tải lên: 20/06/2014, 01:20

... Gears and roller chains A10 Wire ropes A 11 Flexible couplings A12 Slides A13 Lubricant selection Lubrication systems A14 Selection of lubrication systems A15 Total loss grease systems A16 Total ... bearings B13 Gears B14 Pistons and rings B15 Seals B16 Brakes and clutches B17 Wire ropes B18 Fretting of surfaces B19 Wear mechanisms Component repair B20 Repair of worn surfaces B 21...

Ngày tải lên: 11/08/2014, 10:22

... lubricants and coatings A5 .2 C BURNISHED FILMS Effects of operational variables Results obtained from laboratory tests with a ball sliding on a film-covered disc. Applicable to MoS 2 , WS 2 and related materials, ... and the type of thickener used in their manufacture. The section of this handbook on greases summarises the properties of the various types. Additive oils are not r...

Ngày tải lên: 11/08/2014, 10:22

... 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. ... grease and oil lubrication Table 8.2 The effect of the method of application on the choice of a suitable grade of grease A 13 Lubricant selection A 13. 4 Table 13. 4 So...

Ngày tải lên: 11/08/2014, 10:22

... units A 14 Selection of lubrication systems A 14. 2 METHODS OF SELECTION Table 14. 1 Oil systems Table 14. 2 Grease systems Table 14. 3 Relative merits of grease and oil systems Table 14. 4 Selection ... Selection by heat removal A 14 Selection of lubrication systems A 14. 4 Table 14. 7 General selection by component. Operating conditions and environment Selection of gear lubrica...

Ngày tải lên: 11/08/2014, 10:22

... 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 ... Selection of filters and centrifuges A22.1 Figure 22.1 Typical circuit showing positions of various filters Table 22.1 Location and purpose of filter in circuit Table 22.2 Range of...

Ngày tải lên: 11/08/2014, 10:22

... mineral oils only A 26 Commissioning lubrication systems A 26. 4 Table 26. 2 Fault finding – total-loss systems A24A guide to piping design A24.7 Table 24.4 Loss coefficients Figure 24 .6 Correction factor ... for flow through curved capillary tubes of bore diameter d and coil diameter D A 26 Commissioning lubrication systems A 26. 2 Running tests and adjustments SYSTEM OPERATIO...

Ngày tải lên: 11/08/2014, 10:22

... 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...

Ngày tải lên: 11/08/2014, 10:22

... 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 be...

Ngày tải lên: 11/08/2014, 10:22

... motion, often with embedded particles and haloes. Causes Dirt particles in lubricant exceeding the minimum oil film thickness. Foreign matter Characteristics Severe scoring and erosion of bearing ... Wear and corrosion of production machinery, blocked pipe-lines, valve and pump failure. 8 Staff problems due to smell and possibly health. ANTI-MICROBIAL MEASURES These may involve: 1 C...

Ngày tải lên: 11/08/2014, 10:22

... 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...

Ngày tải lên: 11/08/2014, 10:22

... wear. Causes Overheating and unsuitable friction material. Band crushing* Characteristics Loss of friction material at the ends of a band in a band clutch. Usually results in grooving and excessive wear ... member. Causes Crushing and excessive wear of the friction material owing to the high loads developed at the ends of a band of a positive servo band clutch. Burst failure Characteris...

Ngày tải lên: 11/08/2014, 10:22

... when coarse material tears off sizeable particles from wearing surfaces. This normally involves high imposed stresses and is most often encoun- tered when handling large lumps. High-stress abrasion This ... vari- able speed control and cooling facilities, are built by specialists in the manufacture or repair of bearings. (ii) Speed and temperature control Rotational speed and pouring...

Ngày tải lên: 11/08/2014, 10:22

... temperatures and stresses often associated particularly with the cutting and abrasive processes. Optimised surface specification thus becomes a highly complex matter that often calls for experiment and research, ... ␮m R a (2.5). A standard cut-off value often found suitable for the finer surfaces is 0.8 mm, and if this value was used or is to be used, the standards allow it to be ass...

Ngày tải lên: 11/08/2014, 10:22

... lubrication, A11.1, A11.2, A13.4 Cryogenic temperatures, lubrication, A30.4 Cutting oils, A2.3 Cylinder problems: bore polishing, B14.4 bore scuffing, B14.5 cavitation erosion, B14.5 wear, B14.4, ... A2.2 Splash lubrication, A8.5, A17.1 Spontaneous ignition of oils, A3.1, A3.2 Spray lubrication, A9.1 Steam and gas turbines lubrication, A2.7 Steam engine cylinder lubrication, A2.7 Ste...

Ngày tải lên: 11/08/2014, 10:22