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FAG sealed bearings, lubricated for lifevice life. The standard for spindlebearings are hybrid bearings – acombination of steel rings and ceramicballs.Cylindrical roller bearings alsocomprise ceramic rollers. Siliconnitride is the ceramic material thatcombines the typical ceramic propertiesin the most favourable way.Advantages compared to steel are• the excellent tribological behaviourof steel and ceramics in hybridbearings, resulting in reducedmaterial and lubricantstress.• the reduced density with correspondinglylower centrifugalforces.• the lower thermal expansion coefficientwith its positive effecton bearing preload.• the higher elastic-modulus thathas a positive influence on bearingrigidityThese factors result in significantlyextended bearing life. For this reason,hybrid bearings are meanwhilecommonly used even withlower speeds.LubricationThe lubricant plays a decisive rolein the overall consideration of thesystem ‘bearing’ as the decision infavour of either oil or grease hasan immense influence on systemcosts. Super precision bearings andFAG AC/SP lubricants permit reliablegrease lubrication even atmaximum speeds. Before a lubricantis approved for such applications,it has to undergo a strict approvalprocedure. Here, application-specificdemands play a crucialrole, for instance high speeds,low temperatures and non-criticalrun-in behaviour in the case ofspindles. The final result is a specialproduct definition for whichcompliance is ensured by continuousinspections.FAG · 7
SPINDLE BEARINGSFAG spindle bearings are singlerow angular contact ball bearingsof the highest precision. Their specialdesign features in terms ofcontact geometry, surface designand other properties result in• high precision• excellent speed-ability• high rigidity• good vibration behaviourof the spindles.The bearings are available in variousstandardized boundary dimensionswhich represent an importantprerequisite for bearing exchangeability.This permits optimum solutionsfor specific demands.FAG Universal BearingsFAG universal bearings are a speciality.They are manufactured insuch a way that they can be mountedin any arrangement withoutsuffering performance losses orcombined in different sets. Thisbrings essential logistical advantages,especially in stock-keepingof spare parts. The bearings canbe arranged according to the symbolon the outer ring surface (Picture1).FAG · 8
Page 1 and 2: PRECISIONTECHNOLOGYINSIDESUPER PREC
Page 3 and 4: CONTENTSPrecision Technology Inside
Page 5 and 6: PRECISION TECHNOLOGY INSIDEOptimum
Page 7: PRECISION TECHNOLOGY INSIDEProduct
Page 11 and 12: SPINDLE BEARINGSDIRECT LUBE Bearing
Page 13 and 14: SPINDLE BEARINGSB NS NS BB Nr ar br
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SPINDLE BEARINGSB NS NS BB Nr ar br
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FLOATING DISPLACEMENT BEARINGSThe f
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FLOATING DISPLACEMENT BEARINGSr ar
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FLOATING DISPLACEMENT BEARINGSr ar
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SUPER PRECISION CYLINDRICAL ROLLER
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DOUBLE DIRECTION ANGULAR CONTACT TH
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ANGULAR CONTACT THRUST BALL BEARING
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AXIAL-RADIAL CYLINDRICAL ROLLER BEA
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LIFE CALCULATION FOR SUPER PRECISIO
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LUBRICATIONGrease LubricationL210 i
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LUBRICATIONGrease LubricationGrease
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LUBRICATIONOil LubricationMinimal O
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TOLERANCES FOR SUPER PRECISION BEAR
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MACHINING TOLERANCES FOR MATING PAR
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SPEED-DEPENDENT FITSSpeed-Dependent
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SPEEDSSpeedsThe speeds attainable b
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DEFLECTION AND RIGIDITYDeflection a
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HANDLING OF SUPER PRECISION BEARING
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HANDLING OF SUPER PRECISION BEARING
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SPICAS 2000SPICAS 2000 - the PC Pro
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SPINDLE BEARINGSCalendar weekof pro
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BEARING CODE SPINDLE BEARINGSB 70 0
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BEARING CODEFLOATING DISPLACEMENT B
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BEARING CODESUPER PRECISION CYLINDR
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BEARING CODEDOUBLE DIRECTION ANGULA
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BEARING CODEANGULAR CONTACT THRUST
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BEARING CODEAXIAL-RADIAL CYLINDRICA
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NOTESFAG · 208
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Every care has been taken to ensure
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super precision bearings

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