super precision bearings

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Corner Dimensionsr smaxa or r 1smaxaLimits for Corner Dimensionsr smin or r 1sminSymbols:r smin , r 1sminr smaxr , r 1smaxrr smaxa , r 1smaxaSymbol for the minimum corner dimensionsin radial and axial directionSymbol for the maximum corner dimensionsin radial directionSymbol for the maximum corner dimensionsin axial directionBore resp. outside ØSide facer smin or r 1sminr smaxr or r 1smaxrCorner Dimensionsof Radial BearingsDimensions in mmr smin , r 1smin 0.1 0.15 0.2 0.3 0.3 0.3 0.6 0.6 0.6 1 1 1 1.1 1.1 1.1 1.5 1.5 1.5Nominal bore over 40 120 40 250 50 400 120 400 120 400diameter “d” including 25 25 40 40 120 250 40 250 400 50 400 500 120 400 500 120 400 800r smaxr , r 1smaxr rad. 0.2 0.3 0.5 0.6 0.8 1 1 1.3 1.5 1.5 1.9 2.5 2 2.5 2.7 2.3 3 3.5r smaxa , r 1smaxa ax. 0.4 0.6 0.8 1 1 1.7 2 2 2.6 3 3 3.5 3.5 4 4.5 4 5 5r smin , r 1smin 2 2 2 2.1 2.1 2.5 2.5 2.5 2.5 3 3 4 5 6 7.5Nominal bore over 80 220 280 100 280 800 280diameter “d” including 80 220 800 280 1200 100 280 800 1200 280 1200 1200 2000 3000 3000r smaxr , r 1smaxr rad. 3 3.5 3.8 4 4.5 3.8 4.5 5 5 5 5.5 6.5 8 10 12.5r smaxa , r 1smaxa ax. 4.5 5 6 6.5 7 6 6 7 7.5 8 8 9 10 13 17Corner Dimensionsof Thrust BearingsDimensions in mmr smin , r 1smin 0.1 0.15 0.2 0.3 0.3 0.6 1 1 1.1 1.5 2 2.1 3 4 5 6 7.5Nominal bore over 120 500diameter “d” including 25 25 40 120 250 400 500 800 800 1200 1200 1200 2000 2000 3000 3000 3000Engineeringr smaxr , r 1smaxr rad. 0.2 0.3 0.5 0.8 1 1.5 2.2 2.6 2.7 3.5 4 4.5 5.5 6.5 8 10 12.5r smaxa , r 1smaxa ax. 0.2 0.3 0.5 0.8 1 1.5 2.2 2.6 2.7 3.5 4 4.5 5.5 6.5 8 10 12.5FAG · 161
MACHINING TOLERANCES FOR MATING PARTSDefinitionsMachining Tolerances for Mating PartsThe performance capability of super precision bearings in terms of speed-ability and running accuracy is continuouslyincreasing. However, only if the precision of the mating parts is in line with that of the bearings, will it bepossible to exploit this enhanced performance capability.The tolerances of dimension, form and position listed in the following tables have proven suitable in many applicationsof super precision bearings. The values are a means for better and quicker fit selection and ensure reliablefunction and exchangeability. The mean roughness values R a of the bearing seats must not be exceeded sothat the recommended fits remain within a limit of alteration. (smoothing)The universally applicable rules of rolling bearing technology which consider the• direction and effect of load• rotation of inner or outer ring• alteration of fit due to temperatures and centrifugal forcesmust also be observed.ShaftAR at 3t 4 ATolerance Symbolsdtaper1 :12d 1dd 1Lt 1t 2t 3t 4t 5AT DR a= Nominal diameter of shaftor small end taper= Nominal diameter of largeend taperd 1 = d + 1/12 · L= Length of taper L = 0.95 · B(B = bearing width)= Cylindrical form tolerance(DIN ISO 1101)= Roundness tolerance(DIN ISO 1101)= Flatness tolerance(DIN ISO 1101)= Axial runout tolerance(DIN ISO 1101)= Coaxiality tolerance(DIN ISO 1101)= Taper angle tolerance(DIN 7178)= Mean surface roughness(DIN 4768)dAR aR aR aLt 2t 3t4 A-Bøt 5 /300 B t1 øt 5 /300 AR at3t4 AR at1R adAdBFAG · 162
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PRECISIONTECHNOLOGYINSIDESUPER PREC
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CONTENTSPrecision Technology Inside
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PRECISION TECHNOLOGY INSIDEOptimum
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PRECISION TECHNOLOGY INSIDEProduct
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SPINDLE BEARINGSFAG spindle bearing
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SPINDLE BEARINGSDIRECT LUBE Bearing
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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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Page 111 and 112: DOUBLE DIRECTION ANGULAR CONTACT TH
Page 113 and 114: ANGULAR CONTACT THRUST BALL BEARING
Page 129 and 130: AXIAL-RADIAL CYLINDRICAL ROLLER BEA
Page 135 and 136: LIFE CALCULATION FOR SUPER PRECISIO
Page 145 and 146: LUBRICATIONGrease LubricationL210 i
Page 147 and 148: LUBRICATIONGrease LubricationGrease
Page 149 and 150: LUBRICATIONOil LubricationMinimal O
Page 151 and 152: TOLERANCES FOR SUPER PRECISION BEAR
Page 161: TOLERANCES FOR SUPER PRECISION BEAR
Page 165 and 166: MACHINING TOLERANCES FOR MATING PAR
Page 173 and 174: SPEED-DEPENDENT FITSSpeed-Dependent
Page 175 and 176: SPEEDSSpeedsThe speeds attainable b
Page 177 and 178: DEFLECTION AND RIGIDITYDeflection a
Page 179 and 180: HANDLING OF SUPER PRECISION BEARING
Page 181 and 182: HANDLING OF SUPER PRECISION BEARING
Page 183 and 184: SPICAS 2000SPICAS 2000 - the PC Pro
Page 185 and 186: SPINDLE BEARINGSCalendar weekof pro
Page 187 and 188: BEARING CODE SPINDLE BEARINGSB 70 0
Page 189 and 190: FAG · 188
Page 191 and 192: BEARING CODEFLOATING DISPLACEMENT B
Page 193 and 194: FAG · 192
Page 195 and 196: BEARING CODESUPER PRECISION CYLINDR
Page 197 and 198: FAG · 196
Page 199 and 200: BEARING CODEDOUBLE DIRECTION ANGULA
Page 201 and 202: FAG · 200
Page 203 and 204: BEARING CODEANGULAR CONTACT THRUST
Page 205 and 206: FAG · 204
Page 207 and 208: BEARING CODEAXIAL-RADIAL CYLINDRICA
Page 209 and 210: NOTESFAG · 208
Page 211 and 212: Every care has been taken to ensure
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