Maintenance & Reliability News - Maintenance Journal

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Drive Asset Performance and Deliver Stakeholder Value: Four Powerful Opportunities to Maximize Uptime and Minimize Costs with MRO Analytics Andy Hill, CEO, Oniqua MRO Analytics Analytics help you visualize exactly how effective and efficient your maintenance activities are, benchmarked against best-in-class. You can easily identify focus areas for improvement. In this example, Preventative Maintenance and Planning already meet best-in-class standards, while the other functions require various levels of improvement to come up to best-in-class. [end graphic and caption 50 AMMJ July 2013 With all the buzz around analytics in the technology universe, it’s hard to sort out hype from reality. The truth is that analytics present organizations with an exciting new frontier for extending and leveraging their investments in transactional systems like enterprise resource planning (ERP) – and the technology is proving its value. Transactional systems like ERP and enterprise asset management (EAM), and decision support tools like business intelligence (BI), can only take your data so far. Most businesses that use these systems are swimming in data -- but exploiting a mere fraction of available information. Information that could be used to make better, faster, smarter decisions. Information that could be leveraged to improve business results. Analytics extends ERP, EAM and BI by extracting data held in these systems, refining it using sophisticated algorithms and applied domain expertise, and delivering it as actionable information that can help you make highly effective decisions very quickly. In the field of MRO analytics – analytics for maintenance, repair and operations – the opportunities are significant and the results speak for themselves. By providing insight into complex asset performance management challenges, MRO analytics help assetintensive businesses reduce risk, maximize asset availability, minimize costs and reduce business risk. Whether you’re just finding out about analytics, or are looking for ways to get more out of your current analytics solution, these four analytics-enabled practices offer golden opportunities to maximize asset performance, minimize costs and drive stakeholder value: 1. Inventory optimization: It’s never too late to save with inventory optimization. The practice is arguably one of the best investments available to any assetintensive company. Companies that don’t have an analytics-based inventory optimization process are wasting precious working capital and risking production down-time. 2. New item management: Bringing new items into inventory continues to be a stumbling block for many companies. A lack of science in this process will result in excess inventory in the future. 3. Manage supplier performance: If you don’t already measure your suppliers’ performance, why not? It’s easy, and measuring supplier performance helps your supply partners improve. Suppliers genuinely want to deliver the right materials to the right place at the right time. Implement supplier management and be amazed at how quickly they respond. 4. Master data governance: Smart companies are finally recognizing the value of high quality data, not only as an enabler for analytics, but as a necessary foundation for efficient processes. Some are even managing their data like another asset. Getting it right is not easy, but it can be done. Plant Maintenance Benchmark Scores A = %Estimated Replacement Value; B= Planned Work; C=Preventative Maintenance; D=Captured Work; E=Inventory Turn; F= Inventory Service; G=Overtime; H=Planners; I=Support; J=Training A 10 I H J G MRO analytics presents golden opportunities for assetintensive companies – and the applications are rapidly advancing to offer new and exciting capabilities. What opportunities could MRO analytics help you leverage? How could analytics capabilities make you a hero to your management? www.oniqua.com 8 6 4 2 0 F B E C D Go To Contents Page Go To Next Article Go To Last Page
Selection of 51 AMMJ July 2013 bearing type www.skf.com The choice of the appropriate type of bearing (radial, angular contact or thrust) is determined by the direction of the load which will act on the bearing, while the choice of the appropriate sliding contact surface combination is primarily determined by the way in which the load acts (constant or alternating direction). Radial load When the load is purely or predominantly radial, a radial spherical plain bearing should be selected (fig. 1). These bearings can accommodate a certain amount of axial load in addition to the radial load, . fig. 1 Axial load When the load is purely or predominantly axial then the choice should be a spherical plain fig. 2 thrust bearing (fig.2). These bearings can accommodate a certain proportion of radial load in addition to the axial load. Combined load When the load is made up of radial and axial components which are almost equal in magnitude, an angular contact spherical plain bearing (fig. 3) should be chosen. These bearings can only accept axial load acting in one direction and are generally adjusted against a second bearing to take any axial load acting in the opposite fig. 3 direction. For combined loads where the magnitude of the axial load component is smaller than the radial load, it is possible to use a radial bearing and a separate thrust bearing. In order for this thrust bearing to be subjected to axial load only, it is necessary for it to be mounted with radial freedom in the housing. If, in such cases, tilting movements must be accommodated in addition to oscillating movements, the sphere centres of the radial and thrust bearings must coincide. Constant direction load When the load always acts in the same direction (fig. 4) and when, under dynamic conditions, larger relative movements of the sliding contact surfaces will occur, then a maintenance-free bearing is the preferred choice. If, however, minor fig. 4 alignment movements occur only infrequently (quasi-static conditions), or very heavy loads are applied and shock loads occur when the bearing makes infrequent alignment movements, then steel-on-steel bearings should be used. Alternating direction load When the load changes direction (fig. 5) steel-on-steel bearings are the more appropriate. Maintenance-free bearings have only limited suitability. Constant and alternating direction load Applications where the load acts from one direction for a period and then becomes alternating for a time fig. 5 require special bearings. SKF can offer a selection of bearings for these special conditions which ranges from steel-on-steel bearings with a special groove system to special maintenance-free bearings. Advice can be obtained from the SKF application engineering service. Tilting angle The permissible angle of tilt depends on the Dimension Series, the size and the design of a bearing. Bearings which have a relatively wide inner ring sliding surface in relation to the outer ring - as, for example, bearings of series GEH - allow a larger tilting angle (fig. 6). The permissible tilting angle is given for each spherical plain bearing and rod end in the product tables. fig. 6 Operating temperature The influence of the operating temperature on the bearing materials, particularly the material of the sliding layer, must be considered when selecting the type of bearing. All spherical plain bearings can be used without restriction in the temperature range –30 to +50 °C. At higher temperatures the load carrying capacity is reduced, depending on the material and sliding contact surface combination. This is taken into account by a temperature factor when calculating the basic rating service life. Additionally, it must be checked to see whether the material of the seals will limit the temperature at which the bearing can be used or, for bearings which require maintenance, whether the lubricant chosen will have sufficient lubricating properties at the operating temperature. Go To Contents Page Go To Next Article Go To Last Page
Page 1 and 2: AMMJ July 2013 Issue Asset Manageme
Page 3 and 4: 3 AMMJ July 2013 Today’s manufact
Page 5 and 6: 5 AMMJ July 2013 7. Give the credit
Page 7 and 8: www.pwc.com.au/assetpartnership 7 A
Page 9 and 10: 9 AMMJ July 2013 Since the pump job
Page 11 and 12: Back To The Future 11 AMMJ May 2013
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Page 17 and 18: 17 AMMJ May 2013 aspects of decisio
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