SNR - Industry

1 SNR - IndustryINDUSTRYSNR: bearing expertise to optimize maintenanceMonitoring&measurementInstall ation&removalLubricationServicesBefore choosing the tools, choose the menMaintenance Services Knowledge of bearingsguarantees goodmaintenanceInfluencing productivity, safety atwork and the environment,maintenance has become of vitalimportance, especially concerningheavily loaded parts like maintenance dependsabove all on knowledge andexperience. SNR Maintenanceteams have gained this know-howthrough interventions in diverseindustrial expertise, allied with an abilityto listen to their customers, is theirmost effective Services andproducts: a broad field ofinterventions Our maintenance solutions arenever oversize and adapted to eachparticular case. Our services rangecan take the form of specificinterventions or longer-termcontracts. Our products concernlubrication, the fitting/dismountingand the monitoring. Table of contentsMonitoring&measurementInstallati on&removalLubricationServices Origin of failure2 The maintenance department challenge4 Monitoring and vibration expertise7- On-site services7- Remote services9 Fitting - dismounting of bearings10 Shaft alignment10 Bearing expertise11 After-Sales Service and Guarantees11 Modular training courses12 Technical assistance and logistics13 SNR-LUB Greases17 Fitting compound25 Grease gun for bearings26 Automatic lubricator27 Cold installation Installation kit33 Spanner wrenches35 Sleeves37 Nuts42 Heat assisted installation Induction heaters45 Heat insulating gloves50 Removal Hydraulic extractor51 Continuous monitoring devices (On-line)55 Sensors56 Periodic monitoring devices (Off-line)

2 57 Software57 Laser-targeting thermometer58 Calibrated feeler gauges60 INDUSTRYSNR Industry1 Establishing the cause and origin of failure to improve performanceMaintenance Services By monitoring the millions of SNR bearings available on the market, we have succeededin developing extremely precise statistics regarding causes of failure. This compilation ofdata highlights a vital fact: in the event of premature failure, it is rare that the bearing itselfis the cause. In 90% of cases, failure is caused by external elements that may be classifiedin 4 main families:Incorrect or unsuitable lubrication significantlyreduces bearing service life. Lubrication isfrequently neglected due to lack of accessabilityand the user's lack of knowledge choice of lubricant, the method, the quantityto be added and the frequency of addition shouldbe carefully analyzed. SNR can specify therecommended lubricant, and markets a completerange of greases suited to each type ofapplication, as well as an automatic lubricationsystem (refer to the Lubrication chapter).

3 Inadequate lubrication (70%):Frequently, bearings are used in extremely pollutedenvironments that significantly reduce bearingservice counter these problems, SNR has developedan extremely broad range of sealing systems andcan advise which is most suited to (18%):SNR Industry3 The installation of a bearing is a key step that willeffect the bearing's service fact, bearings that are incorrectly installed willbecome worn very quickly. The main causes areas follows: improper installation procedures, contamination during installation, incorrect preparation of mating surfaces:shafts and housings outside tolerance limits,faulty lubricant access, may cause abnormal noise, in the shortterm it will cause fatigue of bearing can either perform installation and removaloperations, or provide you with tools and devicesthat will facilitate these operations and helpensure that they are correctly performed (refer tothe Installation & removal chapter, Serviceschapter).

4 Improper installation (10%):Bearings support loads and must at the sametime rotate, conditions which cause fatigue ofcritical components. Fatigue, or spalling, ofrolling elements and raceways is the normalmode of bearing failure, but can be acceleratedby a number of faults. By using our monitoring methods you will beable to identify the first signs of spalling andschedule suitable maintenance operations (referto the Monitoring & measurement chapter,Services chapter).Fatigue (2%):INDUSTRYThe maintenance department challenge:To ensure production tool availabilitywhen needed at optimised costMaintenance Services Currently operating in just In Time mode, the Industry is continuously compelled toreduce production costs while improving the quality of manufactured products. Hence,the quest to optimise the availability of production means and to decrease maintenanceand repair costs has become crucial."Better safe than sorry" is a good summary of current maintenance philosophy whichhas had to evolve in order to meet these requirements.

5 Increasingly, it is vital that the"maintenance policy" to be adopted is identified upstream, frequently with regard tomachine constraints. Curative or corrective maintenance: after failureThis involves waiting for a failure to occur before determining the problem and carrying out requires excessively large intervention teams in order to ensure fast reaction times, withoutallowing company control equipment availability. Failure usually generates significant productionlosses and repair costs. Preventive: routine maintenanceRoutine maintenance, performed at regular intervals, engenders an increase in installation reliability butdoes not prevent does not take wear of replaced parts into consideration and involves extraction and fitting that have anegative impact on service life and equipment reliability. It also means that machines are out of use for theduration of maintenance. Lastly, the large stocks of spares and labour needed to perform routinemaintenance constitute as significant cost.

6 According to some studies, 30% of amounts invested inpreventive maintenance are wasted. On-condition maintenance The aim of on-condition maintenance is to predict failures without dismounting machines or stoppingproduction. It involves defining parameters which characterise the equipments state of health andperiodically monitoring changes of said parameters in order to schedule corrective interventions at theoptimum most commonly used techniques in the Industry are vibration monitoring, tracking of operatingparameters, analysis of lubricants and IR thermography. On-condition maintenance offers many economic advantages: The incidence of unscheduled production shutdowns is decreased thus increasing equipmentavailability, Reduction of routine shutdowns for maintenance, The severity of repairs is limited thus entailing a reduction of intervention costs and an increase inintervention safety, Reduction of storage costs for spares procured according to actual requirements, Scheduling of maintenance interventions thus allowing improved organisation of the interveningparties and cost reductions, Intervention quality improved thanks to targeted actions, Employee motivation via valuation of maintenance order to efficiently meet these new maintenance expectations, SNR has developed a range ofproducts and services that allow our clients to cope with all and vibration expertisep.

7 7- On-site servicesp. 7- Remote servicesp. 9 Fitting - dismounting of bearingsp. 10 Shaft alignmentp. 10 Bearing expertisep. 11 After-Sales Service and Guaranteesp. 11 Modular training coursesp. 12 Technical assistance and logisticsp. 13 INDUSTRYS ervicesAn objective and globalapproachMaintenance must take into account allthe mechanical environment because the interactions between the bearing and other elements generate global approached, defined thanks to experience of multiple applications, is nevertheless strongly linked to objectivedata which guarantees the neutrality of is why SNR calls upon specialisedpartners, in particular 01dB Acoustics &Vibration. This collaboration enables us to propose many different modes ofmonitoring and in particular the vibratoryanalysis which is very effective in the fieldof rotating and flexibility for an adapted serviceVia its worldwide network of distributors,SNR bases its "Maintenance Services"expertise on the same values as itsmanufacturer policy: flexibility,responsiveness and proximity.

8 SNRfocuses as much on its customers as itdoes on its methods for deciphering the future of each bearingSNR Industry7 INDUSTRYM onitoring and vibration expertiseOur shaft alignment and vibration expertise services will allow customers to define: monitoring methods and test/inspection means, test/inspection intervals, the organisation to be implemented, formal presentation of results and performance of technical/economic Monitoring and Analysis: On-site services* Installation and start-up of portable (Off-line) vibration monitoring systems System installation, Monitoring database parameter setting: definition ofcontrol procedures, measurement points, monitoringparameters, thresholds, etc., Analysis of measurements and zero state report. Installation, start-up and maintenance of continuous (On-line) vibrationmonitoring systems Installation of systems with, possibly, management of service providers for positioning of sensors,wiring and channel grouping units, System parameter setting: definition of control procedures, monitoring parameters, thresholds, etc.

9 Preventive and corrective maintenance of all our systems in the context of guarantees and maintenancecontracts. Periodic monitoring of your equipment Initialisation of monitoring, Data management, Periodic acquisition of data by the collector, Data analysis and provision of a monitoring report describing preventive and corrective actions tobe performed. * Works realized by our partner 01dB Acoustics & VibrationServicesMonitoring and vibration expertise Expert analyses and occasional interventionsThere is a complete range of services available to allow monitoring of equipment fromcommissioning up until decommissioning and to ensure optimum availability. Acceptance testing of machines, ensuring compliance, settlement of discrepancies and disputes, Control procedures acknowledged and recognised by machine constructors and inspectionorganisations. They allow assessment of equipment quality with respect to standards in effect anddesign specification: critical speed, separation margin, susceptibility to imbalance, stability margin, etc.

10 Occasional expert analysis of mechanical problems. Use of advanced analysis techniques to characterise machines in stationary and transient modes andto perform structure analyses. Control hardware and software fitted with efficient analysis tools suchas: acyclism analysis for gear box, "ellipse" Bode analysis to establish critical speed, the "slidingstatistics" to detect pulse phenomena, experimental modal analysis and calculation of modal distortionto resolve machine-structure coupling problems. Assistance with design, enhancing reliability of installations, reduction of nuisances, modelling, design.(Working with our partner Metravib RDS). On site Balancing of rotating machines (without removing the rotor).Vibration Monitoring and Analysis: remote servicesFrom telephone services to complete responsibility for your conditional maintenance tools, ourobjective is to guarantee you optimum cost efficiency. Data is transferred automatically by: Modem: exchanges between our On-line monitoring systems (Moviscan) and our remote monitoring centre, E- mail: measurements taken with our data collectors by you or, by a local service provider that we selecttogether.