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super precision bearings

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MACHINING TOLERANCES FOR MATING PARTSDefinitionsDesign of Surrounding Structurefor Axial-Radial CylindricalRoller Bearingst 2R at 8CTolerance Symbolst 6AR ad 3D 3t 2t 6t 8R a= Nominal shaft diameter= Nominal housing bore= Roundness tolerance(DIN ISO 1101)= Parallelism tolerance(DIN ISO 1101)= Perpendicularity tolerance(DIN ISO 1101)= Mean surface roughness(DIN 4768)t 6t 2DAø d 3Cø D 3BDR at 8 BR aFAG · 164

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