Skf how to mount and dismount wheel bearings using the skf tool vkn 600, vkn 601 and vkn 6021 duration. Most mounted bearings never reach their calculated l10 life most bearings fail due to solid or liquid contamination and lubrication issues better sealing provides added protection and helps prevent up to 80% of bearing failures insufficient lubricant 15% unsuitable lubricant 20% aged lubricant 20% solid contamination 20% liquid contamination 5%. Tight, but not too tight with wheel bearing adjustments. Many bearing manufacturers have already determined the free space for a number of their catalog bearings figure 4. The need for a standard maintenance procedure with this type of task is obvious. The unit with a common sole plate is completely assembled in our shop and is ready for installation. Oct 10, 2014 skf how to mount and dismount wheel bearings using the skf tool vkn 600, vkn 601 and vkn 6021 duration. Understanding proper bearing lubrication procedures is critical to ensuring longterm, troublefree performance. The company designs, makes and markets highperformance mechanical components, including bearings, belts, gears, chain and related mechanical. If proper procedures are used, many bearing problems can be avoided and the reliability, productivity, and operating costs of the equipment containing the bearings are all improved.
Good examples of this type of procedure include bearing lubrication, gearbox lubrication, drive belt tensioning, alignments, bearing installation, drive chain replacement, hydraulic hose construction and replacement, wear component replacement and clean oilhandling techniques. It is important for proper bearing maintenance to determine inspection requirements and intervals, according to the importance of the system or machine, and adhere to the established schedule. However, when the machine is received, it is recommended that the bearing oil reservoirs on sleeve bearing motors be filled to the proper oil level with a good grade of rustinhibiting oil. The determination to reuse a bearing should be made only after considering the degree of bearing wear, the function of the machine, the importance of the bearings in the machine, operating conditions, and the. All bearings should be kept clean because contamination and corrosion will shorten the life of any bearing.
Skf maintenance products kelvinbaan 16, 3439 mt nieuwegein po box 1008, 3430 ba nieuwegein the netherlands 26 1. In general, light oil or kerosene may be used as a cleaning solution. Collect and evaluate any data from bearing monitoring devices. Conveyor safety and preventive maintenance industrial wiki. Pinion bearings are provided of either the sleeve type or antifriction type. The useful life of any bearing depends to a great extent on the care and maintenance it receives.
In most cases, improper electric motor lubrication procedures can have a negative impact on the program. Spherical roller bearings disassembly and assembly. Refer to the maintenance manual for the proper procedure. Novanta is a trusted technology partner to original equipment manufacturers in the medical and advanced industrial technology markets.
Plant engineering seven tips for proper bearing maintenance. The determination to reuse a bearing should be made only after considering the degree of bearing wear, the function of the machine, the importance of the bearings in the machine, operating conditions, and the time until the next inspection. Seven tips for proper bearing maintenance plant engineering. Because each manufacturer maintains design information on his bearings, a simple phone call to the engineering department of the bearing manufacturer will result in the most accurate value for a specific bearings free space. By applying the right maintenance practices and using the correct tools, you can considerably extend your bearings service life and increase plant productivity and efficiency. Best practices and preventative maintenance bearings and. It is sometimes difficult to determine the real cause of bearing. Sep 01, 2007 the development of an effective lubrication procedure is the backbone of a successful, worldclass maintenance program. Early failure is mostly attributable to inadequate handling or maintenance. Oct 01, 2007 routine maintenance proceduressuch as a bearing lubricationare performed over and over again on a regular basis. In this case, the larger bearing is installed on the motor drive endplate. Remember, if we take care of our smaller details correctly and consistently, our larger functions and processes will for the most part take care.
Bearing installation and maintenance guide waikato bearings. Timken tricks of the trade finding wheel hub torque specs. The development of an effective lubrication procedure is the backbone of a successful, worldclass maintenance program. The company provides innovative and enabling solutions with photonics, vision, and precision motion technologies. Correct procedure of removing a bearing from shaft protects the bearing, bearing housing and shaft from getting damage. Proper methods and tools should be used, as is the case with the mounting procedure, especially if the bearing will be placed back into service. Choosing the most cost effective maintenance procedure part 2. However, breakdowns due to improper application, bearing design, and maintenance are more frequent than flaking due to rolling fatigue in the field. A general guide to dc motor maintenance ohio electric motors. Basic bearing maintenance training dvd bbm demo youtube. Check rotation bearing wear every 2 years until it measures 0. So first let us see the various procedure and favorable tools for safe bearing removing process.
This includes bearing storage, removal, cleaning, inspection and installation. Check bearing fits and shaft runout, and replace the shaft and sleeve if worn or if the shaft. A bearing has a random life due to a complex set of factors that determine the life of a bearing. Before disassembling the bearing housing, measure the axial movement of the shaft. A wellplanned preventive maintenance program is the key to dependable, longlife operation of motors and generators. As the bearing is driven up the tapered seat, its inner ring expands and its radial internal clearance is reduced. On this blog, we talked many times about the benefits of being proactive with your maintenance and how to make a switch from reactive to preventive maintenance today, we will take a step back and have a hard look at corrective maintenance. A welldesigned lubrication procedure must address three separate and distinct issues. Inspect lubrication passages to be sure that they are not blocked. Bearings may fail earlier than the expected rolling fatigue life. Oct 24, 2012 za tech av is one of south africas leading providers of technical training dvds. Preventive maintenance of pump bearings turbomachinery.
Proper maintenance and handling leads to longer bearing life, minimised downtime, and greater productivity, which ultimately leads to cost savings and lower cost of ownership for your business. After the lubricant has been sampled for examination, the bearings should be cleaned. Any change of the bearing is carefully examined after operation and during periodic inspections so as to take measures to prevent recurrence. Backtobasics bearing maintenance store, lubricate, mount, and dismount properly for better performance. Today we will discuss here the procedure of bearing removing from shaft and also the desired procedure for cleaning the bearing. If the bearing had been taken out of operation when the roller was in the condition shown on the left, it would be possible to determine the cause of failure. Sep 10, 2014 all these basic tips can help advance a bearings performance, reliability, economy, and service life and, in the process, reduce maintenance time, labor, and costs. Locate the grease inlet, clean the area, and replace. Oct 10, 2016 the procedure for removing and inspecting a bearing will be similar for regular preventative maintenance as it is for addressing a bearing issue. Bearing and shaft seal maintenance is available in online maintenance training and course manual formats. An adequate supply of clean lubricant must be present at all times to prevent damaging, metaltometal contact. The bearing is generally usable up to the end of the rolling fatigue life if handled properly.
Proper maintenance keeps large slewing ring bearings going largediameter bearings are customengineered and manufactured almost exclusively for lifting equipment that requires rotation. The way a bearing is maintained and handled has a huge impact on its performance. The procedure for removing and inspecting a bearing will be similar for regular preventative maintenance as it is for addressing a bearing issue. The online course continues with installation and replacement of antifriction bearings. To attain reliable operation with high equipment performance and the lowest possible maintenance costs, it is essential to follow proper handling practices. At this point it is impossible to tell what caused the initial failure. Our procedure consists of optimizing shell ovality, without exceeding acceptable bearing pressures or hertz pressures.
Routine maintenance proceduressuch as a bearing lubricationare performed over and over again on a regular basis. Plant engineering bearings play a significant role in the free and unrestricted movement of mechanical parts or components, from your car. Here is a simple 8point checklist for ensuring your bearing is always handled in the correct way and thus, optimising. The high cost of the resultant downtime eats deeply into profits. As for the procedure for dismounting and inspection, refer to section 5, inspection of bearings. You cant control how he uses his clutch or his brakes, but you can make certain the clutch system is properly adjusted and working as the manufacturer intended. Clutch maintenance, like brake maintenance, helps your customer receive the maximum service life from his clutch components. Conveyor safety and preventive maintenance industrial. General bearing handling and inspection reliabilityweb. The way a bearing is maintained and handled has a huge impact on its. Skf confirms that bearing life is random even when bearings are operating under same conditions. The mounting and dismounting section has been expanded to include. Hot kiln alignment nak provides the most accurate and comprehensive kiln alignment in the industry.
Twin bearing construction may use either individual sole plates or a cast common sole plate. In modern plant operations, unscheduled stoppage of production or long repair shutdowns are intolerable. Lock out the circuit breaker disconnect switch with personal padlocks on the conveyor before performing maintenance. Lubrication procedure bearings should be lubricated while stationary and the motor is warm. Also covers linear motion bearings and shaft seals. Individual stepbystep instructions for mounting selfaligning ball bearings, spherical roller bearings, and cb this expansion ill allo the boo to be.
The stages in a bearing life cycle are extremely important for achieving the maximum service life of the bearing. Engineers are responsible to monitor closely and ensure that laid down procedure are followed. Bonded collet maintenance procedure westwind air bearing. Kluber lubrication has prepared this explanation as a general guide. If water is detected in the lubricant, the bearing housing will need to be flushed out and relubricated. Bearings should always be stored in a cool, clean, lowhumidity environment free of dust, shocks, and vibrations. Having your wheel bearings repacked is a procedure we recommend you have done every two years even if you have ez lube axles. Appendix preventive maintenance and inspection checklist winch motor mounting bolts loose winch brake operation. If it fails earlier, it may be due to some fault in the selection, handling, lubrication, andor mounting of the bearing. Preventive maintenance checklist for centrifugal pumps. Bearing and shaft seal maintenance covers plain bearings, their parts, dimensions, functions, and relining techniques. Skf develops and markets maintenance tools, lubricants and lubricators to optimie mounting, dismounting and lubrication of bearings the product assortment includes mechanical tools, heaters, oil inection euipment, instruments, lubricants and lubricators.
All inspections and adjustments can be made from outside the. Therefore, a lubrication procedure would guide the user through a specific lubrication task. Industrial bearing maintenance manual industrial bearing maintenance manual the timken team applies their knowhow to improve the reliability and performance of machinery in diverse markets worldwide. Although management probably realizes the value of a good preventive maintenance pm program, they.
By the time the bearing completely failed, it had run so hot that the steel softened and the bearing became deformed. It is important to determine inspection procedures and establish regular. In order to maintain the original performance of a bearing for as long as possible, proper maintenance and inspection should be performed. Our major kiln maintenance and repair activities are broken down as follows. Timken tricks of the trade lubricating light vehicle axle shafts. Normal inspection and cleaning procedure should be followed. Proper bearing maintenance can keep large slewing ring.
How to write an effective lubrication procedure efficient plant. For best relubrication results, only use the appropriate amount of grease for each bearing size not the same for both. Mounting procedure lm block set screw lm rail set screw table base subsidiaryrail side master rail side. The intent of a good maintenance program is to extend the service life of a motor.
For belt tracking or listening for bearing noise, never touch a moving belt, roller, pulley, or bearing. General bearing handling and inspection to attain reliable operation with high equipment performance and the lowest possible maintenance costs, it is essential to follow proper handling practices. Do not perform maintenance while the conveyor is operating. The choice of tools will depend on bearing type, size, and fit. Maintenance professionals around the world turn to timken to help improve the. L578 suspension preventive maintenance guide l974 drum brake maintenance procedures, heading retracting the brake shoes or slack adjuster control arms t71004 hub and rotor assembly and caliper mounting procedures t82006 stud replacement procedure table 1.
Bearing maintenance tools skf maintenance products skf. Twin city fan companies experience has shown that grease is the best type of lubricant for fan applications. Bearing cleaning when bearings are inspected, the appearance of the bearings should first be recorded and the amount and condition of the residual lubricant should be checked. Induction motor maintenance february 17, 2019 february 24, 2012 by electrical4u maintenance as the name suggests it is the action necessary for retaining or restoring a piece of equipment or machine to the specified operable condition to achieve its maximum useful life. Contamination can adversely affect bearing and seal service life. A basic set of procedures should include some variation of the following. Inspection of bearings inspection of a machines bearings during operation is.
Bearing preservation maintenance management consultant. The more important a bearing is, the more carefully it should be inspected. Care must be taken not to damage the shaft, which can result in compromising a machines efficiency. The company designs, makes and markets highperformance mechanical components. We will discuss what is corrective maintenance, explore its relationship with reactive maintenance, show you how to efficiently. These devices typically have a complex load spectrum.
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