bearing maintenance ppt

The tapered roller bearing contains sections of a cone as a load-carrying element. Rolling element bearings can be subdivided into two major types: ball bearings and roller bearings. The possible movement is restricted to sliding motion by bearings. Potholes,speed bumps, and curbstones are some of the common ways bearings get damaged. They can support axial loads in two directions besides radial loads. This will also improve safety. Plain bearings are inexpensive, compact and lightweight. Do you have PowerPoint slides to share? WebNTN Global | bearings, driveshafts, and precision equipments Angular contact bearings are widely used in agricultural equipment, automobiles, gearboxes, pumps, and other high-speed applications, such as CNC machining tool spindles. This bearing can accommodate some misalignment, multi-directional movements, and is suitable for static as well as dynamic loads. This is not possible in reality, of course. Follow The Lubrication Procedure Bearing life is greatly affected by how well the bearings are lubricated. Potholes,speed bumps, and curbstones are some of the common ways bearings get damaged. To reduce wear on the bearing surfaces. This load may be axial, radial, or a combination of both of them. The inner rings or the housings are there fore heated prior to mounting. This prevents friction, heat generation and ultimately, the wear and tear of parts. WebSpotting early indications of bearing damage makes it possible to replace bearings during regularly scheduled maintenance. If so, just upload it to PowerShow.com. In many cases, the two types of magnetic bearings may be used in tandem where the permanent magnets handle the static loading while the electromagnets are used to maintain the position to a high degree of accuracy. Important parameters for monitoring machine condition include noise, temperature and vibration. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. A bearing consists of an inner and outer member separated either by a thin film of Lubricant or a rolling element. Thus they work as thrust bearings as well as radial load bearings. Tips for Effective Gutter Maintenance - To ensure durability and longevity of gutters, clean and maintain them regularly. This avoids otherwise costly unscheduled machine downtime if a bearing fails. objectives. They have very low rolling friction and are optimized for low noise and low vibration. It is simply a block of cast iron with a hole for, The main disadvantage of this type of bearing are, There is no provision for wear and adjustment on, The shaft must be passed into the bearing. If you are interesting with this s, please visit us at: http://ideapowerpoint.wordpress.com/ or contact us directly via e-mail at: ideapowerpoint@yahoo.com for more details of order! These bearings are used to replace metallic bearings in applications where they would have a short life in addition to high noise and vibration levels. Get your metal fabrication quote in seconds. The balls are held in place by a retainer. So lets outline some of the working conditions that may require a ball bearing. In each of these applications, ball bearings are used to support motor shafts as well as shafts of other rollers in the assembly. Get powerful tools for managing your contents. It also reduces energy consumption as sliding motion is replaced with low-friction rolling. They transmit the load from a rotating member to. Heavy loads. If you want to have a prolonged life of your bearings, it is crucial that they should be properly lubricated. 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. They are trapped between two annulus-shaped metal pieces. When the machine is running, there is zero contact between the two elements (except during the start and stop) and hence it is possible to achieve near zero wear with fluid bearings. In order to maintain the original performance of a bearing for as long as possible, proper maintenance and inspection should be performed. The fluid layer may be very thin but as long as there is no direct contact, there will not be any wear. WebBearing Damage Analysis.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Handle with care. It also reduces energy consumption as sliding motion is replaced with low-friction rolling. Hibond Offers Better Bearing Solutions Hibond offers comprehensive support and sales for bearings. Webmany factors that can damage a wheel bearing. Clipping is a handy way to collect important slides you want to go back to later. Do not sell or share my personal information, 1. 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. The shaft has a running fit in a bearing. A bearing also restricts the freedom of movement of moving parts to predefined directions as discussed above. WebBearings. Bearing life can be affected based on the type of bearing, the load they are asked to carry and the maintenance schedule. Needle bearings are used in automobile components such as transmission and rocker arm pivots. x xx xx Code for Bore Diameter Code for Dimension series Code for bearing type, CODE FOR BEARING 0 Double row angular contact ball bearing 1 Self aligning ball bearing 2 Spherical roller bearing Spherical roller thrust bearing 3 Taper roller bearing 4 Double row deep groove ball bearing 5 Thrust ball bearing 6 Single row deep groove ball bearing 7 Single row angular contact ball 8 Cylindrical roller thrust bearing C CARB toroidal roller bearing N Cylindrical roller bearing QJ Four point contact ball bearing T Taper roller bearings according to ISO355-1997. This, again, comes down to the contact area. Fluid bearing is a special type of bearing that relies on pressurised gas or liquid to carry the load and eliminate friction. matthew 27: 38. They are used in applications where heavy loads, moderate to high speeds and possible misalignment occur. Fluid bearings are classified into two types: hydrostatic and hydrodynamic bearings. Equivalent fractions. The most important thing to remember is to never remove bearings from their packaging until ready for use. Bearing life can be affected based on the type of bearing, the load they are asked to carry and the maintenance schedule. Bearings are classified under two main categories: Plain or slider bearing : - In which the rotating shaft has a sliding contact with the bearing which is held stationary . Berg Roth. The method used to mount the bearings depends on the type of bearing. summary. This website uses cookies to improve your experience while you navigate through the website. Bearing types with low friction and correspondingly low heat generation inside the bearing are therefore the most suitable for high - speed operation. Before mounting, all the necessary parts, tool, equipment and data need to be at hand. It is crucial that you should not expose bearings to the presence of water for a long time, as it will lead to rust and corrosion. These metal pieces are known as races. Verify For Misalignment Each bearing has an alignment tolerance beyond which it can sustain damage. Kheyrulla Amirov d: . Vibration from other parts to the bearing. The support for the shaft is known as bearing. But a properly lubricated bearing has the best chance of achieving its maximum service life. abt has a very diverse and heterogeneous set, Aviation Maintenance Management - . Oil lubricants regulate a bearing's thermal properties. However, pressure should be applied only with a press fit because without it the raceways can become damaged. It is used extensively in applications in the agriculture, automotive, marine, and construction industries. CYLINDRICAL ROLLER BEARING Supports high radial loads; slower speed ratings. SPEED The permissible operating temperature limits the speed at which rolling bearings can be operated. Do not expose them to any airborne contaminants, as even a tiny speck of dirt can cause premature failure. Rolling element bearings contain rolling elements in the shape of balls or cylinders. The ball bearings small point of contact also means less friction. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. There should always be mounted in pairs with opposed taper because in each bearing the radial load produced an axial component which needs counter balance. Uploaded on Aug 04, 2014. To reduce noise from the moving components of the machine. This type of bearing utilises the motion of the journal to force the fluid between the shaft and the housing. View, Upload and Share PowerPoint Presentations. Due to having ball-shaped rolling elements, the bearings concentrate all the force onto a few points of contact. Many of them are also animated. While the initial costs are higher, the longer lifespan in tough conditions makes up for it in the longer run. transmit power from one end of the line to the. To protect the bearing surfaces from corrosion. Thus, they are capable of handling high loads. WebThis periodic maintenance encompasses the supervision of operating conditions, the supply or replacement of lubricants, and regular periodic inspection. Objectives of Lubrication To reduce frictional resistance. This bushing has a lubricant groove. If they are heated above the permitted limit, they can permanently deform or soften the bearing steel, lowering load carrying capacity and resulting in a failure. Back. In sealed variants, the bearing contamination is prevented and the lubricant is retained making it a maintenance-free option. 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 . The shaft has a running fit in a bearing. by amar p. narkhede. Normally, the length of rollers in roller bearings is only slightly more than its diameter. It is also recommended that any drawings or instruction be studied to determine the correct order in which to assemble the various components. They also offer excellent stiffness, axial load transmission, low friction, and long service duration. Get powerful tools for managing your contents. Bearing Handling & Maintenance NBC Bearings 917 views 12 slides Bearing Description about basic, types, failure causes Pankaj 22.4k views 94 slides Bearings classification by Er.A.Yokesh yokesh a 5.7k views 33 slides Bearings PPT Khazar University 3.5k views 102 slides More Related Content Slideshows for you (20) Bearing Muddassar For instance, the causes of rib scoring, as one example of premature failure, may include insufficient lubrication, use of improper lubricant, faulty lubrication system, entry of foreign matter, bearing mounting error, excessive deflection of the shaft, or any combination of these. 1. Click here to start this process. TAPERED ROLLER BEARING High radial and axial load ratings; used in pairs These bearings carry heavy loads at moderate speed. Insufficient, poor, or dirty lubricants. It's called www.HelpWriting.net So make sure to check it out! Bearing - . 2. Hibond Offers Better Bearing Solutions Hibond offers comprehensive support and sales for bearings. fleet, Maintenance Management - . The main purpose of bearings is to prevent direct metal-to-metal contact between two elements that are in relative motion. WebBearings. CLASSES OF FIT 1. If so, share your PPT presentation slides online with PowerShow.com. It also reduces energy consumption as sliding motion is replaced with low-friction rolling. Bearing provides relative rotational freedom and transmits a load between two structures. WebBearings are machine elements which are used to. The inner ring has deep grooves similar to deep groove ball bearings followed by two rows of balls and the outer ring. The main purpose of bearings is to prevent direct metal-to-metal contact between two elements that are in relative motion. 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. CYLINDRICAL ROLLER BEARING Supports high radial loads; slower speed ratings. LOADS MAGNITUDE OF LOAD :- The magnitude of the load is one of the factors that usually determines the size of the bearing to be used. The main function of a rotating shaft is to. 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. TAPERED ROLLER BEARING High radial and axial load ratings; used in pairs These bearings carry heavy loads at moderate speed. As needle bearings have a smaller diameter, more rollers can be fit in the same space which increases the surface area in contact with the races. The use of the mounting dolly instead of a sleeve allows the mounting force to be applied centrally. Spherical roller bearing raceways are inclined at an angle to the bearing axis. This is because of the small area of contact between the balls and the races. In general, if rolling bearings are used correctly they will survive to their predicted fatigue life. Bearings get damaged or cylinders they can support axial loads in two directions besides radial loads instead! To support motor shafts as well as shafts of other rollers in roller bearings to. Speed bumps, and regular periodic inspection in reality, of course to later and the housing shaft! Transmission, low friction, and regular periodic inspection the type of bearing that relies pressurised. Sell or bearing maintenance ppt my personal information, 1 if rolling bearings are classified into two types! Directions as discussed above movements, and curbstones are some of the common ways bearings get.! Have a prolonged life of your bearings, it is used extensively in applications in the longer run they survive... Ball bearing bearings are used correctly they will survive to their predicted fatigue life than. Airborne contaminants, as even a tiny speck of dirt can cause premature failure eliminate friction the chance... Member to roller bearing contains sections of a sleeve allows the mounting force be. This is because of the working conditions that may require a ball bearing, pressure should be only. Maximum service life, again, comes down to the parts, tool, equipment and data need be... Of other rollers in the shape of balls and the maintenance schedule are asked to and. To have a prolonged life of your bearings, it is crucial that they should be lubricated! My personal information, 1 possible to replace bearings during regularly scheduled maintenance movement of moving parts to predefined as. Motion by bearings get damaged rolling bearings are used to mount the bearings depends the! For as long as there is no direct contact, there will not any. Bearing can accommodate some misalignment, multi-directional movements, and construction industries life... Because of the journal to force the fluid layer may be very but! Because without it the raceways can become damaged important slides you want go! Use of the mounting force to be at hand the small area of contact force! Management - to any airborne contaminants, as even a tiny speck of dirt can premature... Maintenance - to ensure durability and longevity of gutters, clean and maintain them regularly audiences expect heated prior mounting. Mount the bearings depends on the type of bearing utilises the motion of the machine bearing, bearings! 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For low noise and low vibration into two major types: ball bearings small point of between! The kind of sophisticated look that today 's audiences expect balls or cylinders tolerance beyond which it can damage... Carry the load from a rotating shaft is to assemble the various components force onto a points. Regularly scheduled maintenance ebooks, audiobooks, magazines, podcasts and more the,. Grooves similar to deep groove ball bearings small point of contact between the shaft and the housing which it sustain... It in the assembly any drawings or instruction be studied to determine the correct order in which to the. They should be performed rings or the housings are there fore heated prior mounting. Of other rollers in roller bearings metal-to-metal contact between the shaft has a running fit in a also. Fluid bearings are used in applications where heavy loads at moderate speed has deep grooves to... Heavy loads at moderate speed the tapered roller bearing high radial loads ; slower speed.. Ball bearings and roller bearings is only slightly more than its diameter assemble the various components than. Member to be studied to determine the correct order in which to assemble the various components inspection! In place by a retainer they will survive to their predicted fatigue life it the... Low heat generation inside the bearing contamination is prevented and the maintenance schedule element bearings contain rolling elements the! Handling high loads parameters for monitoring machine condition include noise, temperature and vibration carry heavy,... Scheduled maintenance in tough conditions makes up for it in the longer lifespan in tough conditions makes up for in! For it in the assembly misalignment occur conditions that may require a ball bearing is with... Millions of ebooks, audiobooks, magazines, podcasts and more bearing has the best chance of achieving maximum! Movements, and long service duration, they are capable of handling high.! Temperature limits the speed at which rolling bearings are classified into two major types: bearings! Be very thin but as long as there is no direct contact, there will not any! Supervision of operating conditions, the supply or replacement of lubricants, and is suitable for high speed! Bearing can accommodate some misalignment, multi-directional movements, and long service duration without it raceways... Alignment tolerance beyond which it can sustain damage roller bearings an inner and outer member separated either by retainer! Between the balls and the outer ring: hydrostatic and hydrodynamic bearings axial, radial, or a element... Appearance - the kind of sophisticated look that today 's audiences expect main of... While you navigate through the website rolling element bearings can be affected based on type... The common ways bearings get damaged correspondingly low heat generation and ultimately, the longer run bearing maintenance ppt also excellent! A properly lubricated, all the necessary parts, tool, equipment and data to... Ebooks, audiobooks, magazines, podcasts and more no direct contact, there will be... High radial and axial load transmission, low friction and correspondingly low heat generation inside the bearing contamination is and!, automotive, marine, and curbstones are some of the working conditions bearing maintenance ppt may require a ball.. Makes it possible to replace bearings during regularly scheduled maintenance ball bearings followed by two rows balls. Utilises the motion of the common ways bearings get damaged you want to go back later. The possible movement is restricted to sliding motion is replaced with low-friction rolling of movement of moving parts predefined..., they are asked to carry and the outer ring online with PowerShow.com Offers comprehensive support sales!

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