Ideas in Motion Thin Section Bearings: .625 OD to …

1 The challenge LEADER IN BEARINGS AND STEEL 2002 The timken CompanyPrinted In the Order No. 5907 timken is the registered trademark ofThe timken BEARINGSEXTENDED LIFE. REDUCEDWEAR. SMART :Super-Precision Ball BearingsMiniature BearingsIntegral BearingsPrecision Rotary AssembliesHYBRID SIZE RANGE:Miniature and Instrument Bearings:.059" OD to " ODThin Section Bearings: .625" OD to " ODTorque Tube Bearings: Up to " ODTYPICAL APPLICATIONS:Aircraft Accessory, Valve, Transmissionand GearboxGas Turbine Engine MainshaftGimbalsSemiconductor HandlingFood ProcessingDental Handpiece TurbinesSensitive InstrumentsBENEFITS:Ability to withstand high temperaturesExtended fatigue lifeCorrosion ResistanceReduced lubrication requirementsTwice as hard as bearing steelsHigh speed capabilitiesLightweight compared to steelceramic bearings resist chemical are ideal for critical tidal flow meters, wherethey withstand operation in seawater s hard-particulate and corrosive environment.

2 Ceramicis the material of choice for the semiconductorindustry because of its compatibility with waferprocessing environments. timken Super Precisionengineers can provide customer-focused bearingrecommendations for challenging your : YOUR CERAMICBEARING RESOURCEC eramic bearingscontinue to grow inpopularity. timken ce-ramic bearing cus-tomers report en-hanced performance,reliability and bearinglife with our , we offer ce-ramic hybrids utilizing 1mm to 1/4-inch ball diam-eters. Most timken Super Precision standardbearings may be ordered with ceramic balls incombination with 440C and 52100 steel manufactures select sizes of full ceramicball bearings from up to a 1-inchoutside your bearing resource, timken Super Precision,a subsidiary of The timken Company, will deliverunparalleled engineering expertise in the ceramicarena, where our engineers will analyze yourequipment, processes and maintenance routinesto recommend the best solutions. timken SuperPrecision delivers the best products, servicesand technical support Super PrecisionPrecision ParkKeene, New Hampshire 03431 USATel: 603-352-0310 Fax: 603-355-4553 Visit our Website at Super Precision SingaporeTel: (65) 6841-4380 timken Super Precision Europa BVTel: (31) (0) 227-542344 Ideas in MotionTimken Super PrecisionA timken COMPANY SUBSIDIARYT imken Super PrecisionA timken COMPANY SUBSIDIARYTHE TRANSFORMATION OF AN AGE-OLD COMPOUNDFor thousands of years, civilization has reliedon ceramics - thanks to their heat- and cor-rosion-resistant nature - foreverything from dishes to ma-chine operations.

3 Today, ce-ramics have evolved into ad-vanced industrial integrating ceramic ballsand metallic races, including440C, 52100, M50, BG42 andberyllium copper races, wehave significantly reducedbearing wear and lubrication breakdown inhigh-speed components, such as dentalhand pieces and turbine ceramics are high technologyproducts manufactured with advanced pro-cessing equipment for critical of these materials have been speciallydeveloped to withstand the high cyclicstresses and localized wear seen in bear-ings. Bearings have been attractive appli-cations for engineered ceramics becausethese materials are abrasive-resistant, heatresistant and can sustain large compressiveloads, even at high than 20 years of research and testingprove that ceramic Bearings: Maintain longer, more reliable performance;Reduce noise and vibration;Retain stiffness;Operate at lower temperatures; andRequire less ceramic bearings reduce wearand extend S COMPETITIVEADVANTAGEST imken engineers have developed hundreds ofceramic designs.

4 We continue to focus on solu-tions that incorporate the silicon nitride (Si3N4)family of ceramic compounds, known for theirlow-density, hardness, elasticity, tensile strengthand other nitride s density is 40 percent of traditionalbearing steels. Because force is directly propor-tional to mass, the lower-density silicon nitridesignificantly reduces the centrifugal forces of theballs on the outer ring. This enhances operationsin high-speed applications where outer racecontact loads may hinder life is directly related to hardness, themost critical mechanical property of a bearingmaterial. With an impressive Rockwell C 78 hard-ness - twice as hard as many bearing steels -silicon nitride improves wear resistance, minimizingthe damaging effects of repetitive surface high-speed applications, bearings mustwithstand extremely high ceramic bearings operate preciselyat temperatures up to 1,800 F for extendedperiods, compared to short-term maxi-mum temperatures of 1,000 F for the besthigh-temperature bearing hybrid ceramic bearings, the surface as-perities of steel races and ceramic rolling ele-ments do not micro-weld, preventing or slowingfailure caused by adhesive wear, fretting wearand/or lubricant other silicon nitride characteristics enhancebearing performance in some applications, suchas corrosive or electrical environments.

5 It is vir-tually chemically inert, it is non-magnetic and itdoes not conduct HYBRIDS INTOYOUR APPLICATIONSIn applications where heat, friction, speed, adhe-sive wear and marginal lubrication are factors, timken hybrid bearings may perform significantlybetter than steel bearings. Our hybrid bearingscurrently operate in: Gimbals; Aircraft accessories; Medical hand pieces; Can-seaming machinery; and Food-processing bearings in turbo molecular pumps reducenoise, vibration, and operating temperatures, aswell as increase life, and allow for operation undermarginal lubrication conditions. The cooler opera-tion of the ceramic hybrid permits the use of greasein place of oil previously used in conventional allsteel corrosive atmospheres - including pumps,meters and semiconductor applications -knowing how to find the right combinationCeramic bearings con-tinue to grow in popular-ity. timken ceramic bear-ing customers reportenhanced performance,reliability and bearing lifewith our lower-density sili-con nitride significantlyreduces the centrifugalforces of the balls onthe outer to develop solutionscontinuing to develop solutionsunderstanding the elementsunderstanding the elementsBearings have been attractive applications forengineered ceramics because of these mate-rials overall superior challenge LEADER IN BEARINGS AND STEEL 2002 The timken CompanyPrinted In the Order No.

6 5907 timken is the registered trademark ofThe timken BEARINGSEXTENDED LIFE. REDUCEDWEAR. SMART :Super-Precision Ball BearingsMiniature BearingsIntegral BearingsPrecision Rotary AssembliesHYBRID SIZE RANGE:Miniature and Instrument Bearings:.059" OD to " ODThin Section Bearings: .625" OD to " ODTorque Tube Bearings: Up to " ODTYPICAL APPLICATIONS:Aircraft Accessory, Valve, Transmissionand GearboxGas Turbine Engine MainshaftGimbalsSemiconductor HandlingFood ProcessingDental Handpiece TurbinesSensitive InstrumentsBENEFITS:Ability to withstand high temperaturesExtended fatigue lifeCorrosion ResistanceReduced lubrication requirementsTwice as hard as bearing steelsHigh speed capabilitiesLightweight compared to steelceramic bearings resist chemical are ideal for critical tidal flow meters, wherethey withstand operation in seawater s hard-particulate and corrosive environment. Ceramicis the material of choice for the semiconductorindustry because of its compatibility with waferprocessing environments.

7 timken Super Precisionengineers can provide customer-focused bearingrecommendations for challenging your : YOUR CERAMICBEARING RESOURCEC eramic bearingscontinue to grow inpopularity. timken ce-ramic bearing cus-tomers report en-hanced performance,reliability and bearinglife with our , we offer ce-ramic hybrids utilizing 1mm to 1/4-inch ball diam-eters. Most timken Super Precision standardbearings may be ordered with ceramic balls incombination with 440C and 52100 steel manufactures select sizes of full ceramicball bearings from up to a 1-inchoutside your bearing resource, timken Super Precision,a subsidiary of The timken Company, will deliverunparalleled engineering expertise in the ceramicarena, where our engineers will analyze yourequipment, processes and maintenance routinesto recommend the best solutions. timken SuperPrecision delivers the best products, servicesand technical support Super PrecisionPrecision ParkKeene, New Hampshire 03431 USATel: 603-352-0310 Fax: 603-355-4553 Visit our Website at Super Precision SingaporeTel: (65) 6841-4380 timken Super Precision Europa BVTel: (31) (0) 227-542344 Ideas in MotionTimken Super PrecisionA timken COMPANY SUBSIDIARYT imken Super PrecisionA timken COMPANY SUBSIDIARY