>> P.272
2-222-예압량의크기·정밀도의등급-표준경예압중(中)예압중(重)예압:무기호:T1:T2:T3예압량의크기에대한세부사항은표3을참조하십시오.상급정밀급초정밀급초초정밀급:H:P:SP:UP정밀도등급에대한세부사항은표4를참조하십시오.예압량의크기5정밀도의등급6표3예압량항목예압의종류예압기호예압량N사용조건표준(무기호)0(1)·가볍고정밀한움직임경예압T10.02C0·진동이매우적음·하중은균형있는부하·가볍고정밀한움직임중(中)예압T20.05C0·중간정도의진동이있을때·중간정도의오버행하중이부하될때중(重)예압T30.08C0·진동,충격이있을때·오버행하중이부하될때·중절삭주(1)예압이없거나약간의예압상태입니다.비고C0은기본정정격하중을나타냅니다.표4허용차및허용치단위mm등급(등급기호)항목상급정밀급초정밀급초초정밀급(H)(P)(SP)(UP)H의치수차±0.040±0.020±0.010±0.008N의치수차±0.050±0.025±0.015±0.010H치수의상호차(1)0.0150.0070.0050.003N치수의상호차(1)0.0200.0100.0070.003복수세트의H치수의상호차0.0350.025--A면에대한슬라이드유닛C면의주행시평행도그림1에따름B면에대한슬라이드유닛D면의주행시평행도그림1에따름주(1)일한트랙레일에조합된슬라이드유닛끼리의상호차를나타냅니다.HCABDN그림1주행시평행도403020100트랙레일의길이Lmm상급(H)정밀급(P)초정밀급(SP)초초정밀급(UP)50010001500200025003000평행도μm
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