bearing maintenance ppt

The main function of lubricants is to prevent wear and heat loss in bearings. The principal types of roller bearings are cylindrical, spherical, and tapered. Maintenance & Production Planning Scheduling of maintenance activities interacts closely with APP exercise in an organisation Maintenance & Operations Scheduling One of the key assumptions in scheduling is the extent of availability of resources for operations . We are sorry, but the page you requested cannot be found. With separable bearings, the ring with the rolling element and cage assembly can be removed independently of the other ring. They also transmit the load of the rotating element to the housing. fleet, Maintenance Management - . At what frequency should preventive maintenance be done and what is the cost implication of the decision? ON Follow The Lubrication Procedure Bearing life is greatly affected by how well the bearings are lubricated. Presentation by Hitesh Sahni ( www.hiteshsahni.com ), - Short presentation about Global Warming causes and consequences. These cookies will be stored in your browser only with your consent. The most frequent types of bearing failure, along with their causes and corrective actions, are listed in Table 3. COLD DISMOUNTING Small bearing maybe removed from their settings by applying light hammer blows via a suitable drift to the ring face, or preferably by using a puller The claws of the puller should be placed around the side face of the ring to be removed or an adjacent component. We've updated our privacy policy. This bearing is suitable for applications where rigid axial guidance is required. Bearing Motions. The exit orifice diameter may be adjustable to ensure the fluid is always under pressure at all shaft speeds and loads. They also offer excellent stiffness, axial load transmission, low friction, and long service duration. This prevents friction, heat generation and ultimately, the wear and tear of parts. Uploaded on Aug 04, 2014. The support for the shaft is known as bearing. CLASSES OF FIT 5. outline. Webmany factors that can damage a wheel bearing. TAPERED ROLLER BEARING High radial and axial load ratings; used in pairs These bearings carry heavy loads at moderate speed. There are no rolling elements. The main purpose of bearings is to prevent direct metal-to-metal contact between two elements that are in relative motion. Fluid bearings are used in machines that work at high speeds and loads. Thus, it is difficult to determine the real cause of some premature failures. The fluid is circulated by means of a pump. Get powerful tools for managing your contents. It's FREE! CONTENTS - Introduction - Classification - Terminology - Function of Bearing - Selection of Bearing -Types and Application - Bearing Specification - Classes of Fit - Mounting of Bearing - Dismounting of Bearing. 3 0 2 Code for width series Code for OD Code for type, BEARING SPECIFICATION Each anti friction standard bearings has a specific basic designation which indicates the dimension of bearing. BALL BEARING A Ball bearing is a common type of rolling element bearing. Basically preventive maintenance with a view of productivity and competitiveness. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. A plain bearing is the simplest type of bearing. If you want to have a prolonged life of your bearings, it is crucial that they should be properly lubricated. To carry away heat from the bearing. Do not sell or share my personal information, 1. If so, just upload it to PowerShow.com. WebThis periodic maintenance encompasses the supervision of operating conditions, the supply or replacement of lubricants, and regular periodic inspection. S.Y.P.T 1429 Thrust bearings also known as collar bearing. Search Products And Discover New Innovations In Your Industry. Plain bearings and sleeve bearings (journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. This, however, means that during start-stop as well as at low loads and speeds, the wedge formation may not be good enough to prevent wear. Heavy radial and axial loads can be a greater challenge when the shaft is prone to misalignment. Due to having ball-shaped rolling elements, the bearings concentrate all the force onto a few points of contact. complex polar coordinates. A few slides showing what bearings are and introducing the rules. This type of ball bearing is immune to misalignment between the shaft and the housing which may happen due to shaft deflection or mounting errors. Bearings with tapered bores can be mounted directly on tapered or cylindrical shafts with the use of tapered sleeves. frictionless rotation. =. And, again, its all free. Housing, shafts, seals and other components of the bearing arrangement need to be checked to see that they are clean, particularly any threaded holes, leads or grooves where remnants of previous machining operation might have collected. Properly maintained, bearing life can be extended and downtime can be reduced. Care must be taken during installation to prevent denting of the races as they have to be push fit onto shafts. Maintenance Management Maintenance management is A systematic approach to upkeep and running of resources To keep the resources in a working condition and ensure that they are put to productive use in their life To improve the efficiency and effectiveness of the operating System a method of applying the principles of management to maintenance function Important Decisions in Maintenance Management include: Should we repair a machine or replace it with a new one? It appears that you have an ad-blocker running. Now customize the name of a clipboard to store your clips. Ball bearings are used for controlling oscillatory and rotational motion. Activate your 30 day free trialto unlock unlimited reading. The shaft has a running fit in a bearing. A bearing's alignment problem can indicate problems elsewhere on the machine. But opting out of some of these cookies may affect your browsing experience. The bearing is bonded to a steel housing. Maintenance Management - . By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. This means there is no power input needed. - Collection of iconic photographs from the last 100 years. Theoretically, a properly lubricated bearing operating under ideal conditions will last forever. CrystalGraphics 3D Character Slides for PowerPoint, - CrystalGraphics 3D Character Slides for PowerPoint. If a change in position is picked up by sensors, the system adjusts the amount of current being fed to the system and returns the rotor to its original position. A bushing is a relatively thin journal bearing that receives most of its strength from the hoping in which it is mounted. skf deep groove ball, Bearing Burdens - . Some examples are off-road vehicles, pumps, mechanical fans, marine propulsion, wind turbines, and gearboxes. WebNTN Global | bearings, driveshafts, and precision equipments If so, share your PPT presentation slides online with PowerShow.com. It is important during operation to detect signs of irregularities early before damage becomes severe. Properly maintained, bearing life can be extended and downtime can be reduced. other. Hot dismounting. It can carry medium or heavy redial or combined load. PowerShow.com is a leading presentation sharing website. WebBearings also have the capacity to transmit the load of the rotating element to the housing. - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. In addition to this, bearing also restricts the freedom of movement of the rotating parts to predefined directions. Rotating equipment vibration analysis is able to identify signs of misalignment and prevent major problems. The fluid layer may be very thin but as long as there is no direct contact, there will not be any wear. They are trapped between two annulus-shaped metal pieces. There is more friction which can result in higher temperature generation and quicker wear. Heavy force or shrink- Interference Where considerable bonding between surfaces is required, such as locomotive wheels and heavy crankshaft disks of large engines. The bearing is basically a sleeve mounted on the shaft and it fits into the bore. Whatever your area of interest, here youll be able to find and view presentations youll love and possibly download. Contact us today! Plain bearings are inexpensive, compact and lightweight. Bearings play a significant role in the free and unrestricted movement of mechanical parts or components, from your car wheels to your skateboards as well as many other things too. Thus, it may be offset to one side but will still function just as satisfactorily. In sealed variants, the bearing contamination is prevented and the lubricant is retained making it a maintenance-free option. Important parameters for monitoring machine condition include noise, temperature and vibration. visit vxb. To carry away heat from the bearing. Insufficient, poor, or dirty lubricants. Install inner nut with Dowel facing outwards, Torque nut to 270Nm (200Ib/ft) – A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow.com - Needle bearings are used in automobile components such as transmission and rocker arm pivots. They transmit the load from a rotating member to. the replacement of legacy mms software with oracle eam. They have high load-carrying capacities and can manage misalignment between the shaft and housing. WebBearings are machine elements which are used to. Due to large contact area friction between mating parts is high requiring greater lubrication. This housing has a grease note at the top in which a fitting is inserted when the bearing needs to be lubricated. TAPERED ROLLER BEARING High radial and axial load ratings; used in pairs These bearings carry heavy loads at moderate speed. Rolling elements carry the load without much friction as the sliding friction is replaced with rolling friction. An example is a sliding door. Common motions permitted Outer ring or race which fits inside the housing. However, they often fail prematurely due to avoidable mistakes. a stationary member known as frame or housing. Rolling element bearings contain rolling elements in the shape of balls or cylinders. Magnetic bearings can also accommodate some irregularities in shaft design as the shafts position is automatically adjusted based on its centre of mass. This avoids otherwise costly unscheduled machine downtime if a bearing fails. In each of these applications, ball bearings are used to support motor shafts as well as shafts of other rollers in the assembly. Medium- Clearance- In rotating journals with speeds under 600 rpm, such as in accurate machine tools and precise automotive parts. Magnetic bearings use the concept of magnetic levitation to hold the shaft mid-air. COLD MOUNTING If the fit is not too tight, small bearings may be driven into position by applying light hammer blows to a sleeve placed against the bearing ring face. Webmany factors that can damage a wheel bearing. WebBearings also have the capacity to transmit the load of the rotating element to the housing. 6. This prevents friction, heat generation and ultimately, the wear and tear of parts. Clipping is a handy way to collect important slides you want to go back to later. Due to large contact area friction between mating parts is high requiring greater lubrication. Should we do preventive maintenance of the available resources as opposed to reacting to breakdowns occurring in the system? We've updated our privacy policy. matthew 27: 38. Many of them are also animated. prepared by seluk nas. The pressurised fluid forms a wedge between the moving parts and keeps them apart. Then you can share it with your target audience as well as PowerShow.coms millions of monthly visitors. SELECTION OF BEARING TYPE Each bearing type displays characteristic properties, based on its design which makes it more, or less appropriate for a given application The most important factors to be considered when selecting a standard bearing type and thus a facilitate an appropriate choice : Available space Loads Misalignment Precision Speed Quiet running Stiffness Axial displacement Mounting and dismounting Integral seals. The system is, however, difficult to design due to limitations as this technology is still in its early stages. The main function of a rotating shaft is to. Applications turbines, large diesel engines etc. Bearing Maintenance Open navigation menu HOT DISMOUNTING Special induction heaters have been developed to dismount the inner ring of cylindrical roller bearing having no flanges or only one flange. Bearing fitted with shields or seals should not be heated above 80c because of their grease fill or seal material. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. This is the most widely used ball bearing type. It needs a good supports to ensure stability and. But a properly lubricated bearing has the best chance of achieving its maximum service life. asset register planned maintenance reactive maintenance track man hours. definition. Grease supply systems include: housings (with or without grease fittings), grease chamber lubrication, and the grease quantity regulator. Handle with care. The PowerPoint PPT presentation: "Bearings" is the property of its rightful owner. Activate your 30 day free trialto continue reading. The method used to mount the bearings depends on the type of bearing. The support for the shaft is known as bearing. Rolling element bearings are used to facilitate the free movement of parts in rotational motion. WebBearings are used in everyday items ranging from the more obvious applications such as washing machines, cars, the watches on our wrists but also super structures such as building supported on bearings to allow relative movements during earthquakes 4. From a small supermarket trolley to huge power plants, a great number of light-duty, as well as industrial equipment, could not function without the use of bearings in some form.

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