>> P.30
ClassicationofGaugeBlocksbyShapeMitutoyobroadlydividesgaugeblocksintotwocategoriesaccordingtotheblockshape.RectangulargaugeblocksSquaregaugebNominalsize-0.05-0.29m*3.00-30or35m*Dependsonthenominalsize.Morethan10mm:35mm10mmorless:30mmHoleø6.7Nominalsize±0.124.1Squaregaugeblocks1.0±24.1Holeø6.7Allstandardlongblocks125mmormorehavetwocouplingholesonthebody.25±0.5Airypointmarkers25±0.5LongrectangulargaugeblocksMitutoyoGaugeBlocksandInspectionCerticatesACerticateofInspectionisfurnishedwithallMitutoyogaugeblockswithaserialnumberonthebox(inthecaseofsets)andanidenticationnumberoneachblock.Thedeviationofeachblockfromnominallength,atthetimeofinspection,isstated.Forthisinspection,eachgaugeblockismeasuredrelativetotheupperlevelmasterusingagaugeblockcomparator.GradeKgaugeblocksaremeasuredbyaprimarymeasurementmethodusinganinterferometer.Nominalsize(L)2×ø10L×0.21135–030–0.059–0.2GaugeBlocksFeaturesandAccuraciesFeaturesofMitutoyogaugeblocksMitutoyooffersgaugeblocksforuseaslengthstandardsthatarefullydomesticallymanufacturedatourplantinJapanandhighlytrustedworldwidefortheiraccuracy,quality,anddurability.Theyareavailableinthreetypes:steelrectangulargaugeblocks,ceramicrectangulargaugeblocks(CERABlocks),andsteelsquaregaugeblocks.Inaddition,tungstencarbiderectangulargaugeblocksandtungstencarbidesquaregaugeblocksareavailableasprotectors.Selecttherightgaugeblocksforyouruseconditions,environment,andapplication.93.00--0.05-0.2AccuracyOurcalibrationtechniquecombinedwithestablishedtraceabilitytotheJapanesenationalstandardensuresthathighlyreliableproductsaredelivered.Weensurethetraceabilityofallourgaugeblocksandguaranteetheiraccuracybasedonthenationalstandard,soyoucanfeelcondentwhenusingthem.Rectangulargaugeblocks30or35mNominalsizem*WringingLappingmeasuringsurfacesisoneofMitutoyo’sspecialties.Ouradvancedtechnique,developedovermorethanhalfacentury,enablesustoachievetheoptimumatnessandsurfacenishneededforgaugeblocksandthusmaximizethewringingforce.*Dependsonthenominalsize.Morethan10mm:35mm10mmorless:30mmAbrasionresistanceanddimensionalstabilityByadoptinghigh-carbon,high-chromesteelthatcansatisfyvariousmaterialcharacteristicsnecessaryforgaugeblocks,andthermallyprocessingitcarefullyandrepeatedlywithouradvancedtechnology,weproducehighlevelsofhardnessforreliableuseandminimizeagingdeteriorationasmuchaspossible.CERABlocksProducedbyusingourultra-precisionprocessingtechnologyandceramicmaterialswithexcellentsurfacesmoothness,CERABlocksfeaturethefollowingadvantagesnotdeliveredbysteelblocks.(1)CorrosionResistantAnti-corrosiontreatmentisnotrequiredwhenhandlednormally(i.e.withngers),resultinginsimplemaintenanceandstorage.(2)NoBurrsCausedbyAccidentalMishandlingSincetheCERABlockisveryhard,itwillnotscratcheasilyandishighlyresistanttoburrs.Ifaburrisformed,itcaneasilyberemovedwithaceramicdeburringstone(Ceraston).(3)ExcellentabrasionresistanceCERABlocksare10timesmoreresistanttoabrasionthansteelblocksandthereforehavealongerlife(basedonin-housetestresults).AbrasionlossdataSteelTungstencarbideCERABlock2000400060008000Slidingdistance(m)0.40.2Abrasionloss(µm)0(4)DimensionalStabilityCERABlocksarehighlyresistanttodimensionalchangesovertime.(5)ClearlyMarkedSizesBlackcharacters,indicatingthenominallength,areinscribedbylaserandareclearlyvisibleagainstthewhitesurfaceoftheblock.(6)Non-magneticNaturePreventsSteelSwarfContamination(7)HighWringingForceSuperioratnessandsurfacenishprovidesmaximumwringingforce.ProductcatalogE1200101-3
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