Ntxaiv Bearings
Raws li cov khoom tseem ceeb ntawm cov cuab yeej siv tshuab, kev ua haujlwm ntawm spindle yuav ncaj qha cuam tshuam kev sib hloov precision, kev sib hloov ceev, nrawm, nce siab thiab lub suab nrov ntawm lub tshuab cuab yeej, thiab tom qab ntawd cuam tshuam lub machining zoo ntawm lub workpiece.Cov kabmob qhov tseeb rau ntxaiv ntawm lub tshuab cuab yeej yuav tsum yog ISOP5 lossis siab dua(P5 lossis P4 yog qib meej txog ISO, feem ntau los ntawm qis mus rau P0 / P6 / P5 / P4 / P2).
Spindle bearings suav nrog cov khoom sib dhos angular hu npas kabmob, cov kabmob rau cov menyuam, thiab cov menyuam kheej kheej.
1.Precision angular cuag pob bearings:
Precision angular contact pob bearings yog dav siv rau tshuab cuab yeej. Cov ntsiab lus kev tswj hwm yog pob sib tw, vim nws yog qhov sib kis (sib txawv ntawm cov kab sib txuas ntawm cov menyuam bearings), yog li nws muaj peev xwm muab kev sib hloov ceev dua, tab sis withsmaller cov cua sov thiab siab dua qhov kev sib hloov.
Raws li qhov hu rau lub kaum ntawm angular hu npas kabmob muaj kev txhawj xeeb, qhov sib cuag kaum ntawm 15 thiab 25 yog nrov nyob rau tam sim no, thiab feem ntau cov sib cuag kaum ntawm 15 muaj kev sib hloov ntau dua qhov nrawm dua thiab 25 muaj qhov siab dua axial bearing peev. Vim hais tias kev coj tus kheej preload muaj lub zog zoo rau kev siv ntawm precision angular hu npas kabmob, piv txwv li, rau cov kabmob siab load thiab siab rigidity daim ntawv thov, qhov nruab nrab lossis hnyav hnyav preload feem ntau siv. Txog qee qhov kev kub ceev thiab kev siv qhov siab, hauv kev xaiv thaum ntxov ntawm cov kabmob, peb yuav tsum them sai sai rau kev xaiv ntawm qhov tsim nyog preload. Yuav kom yooj yim sib sau ua ke, tam sim no, qee lub npe nrov cov khoom lag luam nyob hauv lub ntiaj teb feem ntau muab kev sib tsoo ua ntej kom tiav ua ntej thauj cov kabmob, uas feem ntau hu ua universal paired precision angular hu npas kabmob. Qhov kev coj cov kabmob no tshem tawm cov neeg yuav khoom los kho cov kabmob ua ntej kev teeb tsa, yog li txuag lub sijhawm.
2.Double kab cylindrical roller bearings (NN hom):
Hauv daim ntawv thov ntawm lub tshuab cuab tam spindle, ob chav-precision precision cylindrical roller bearings kuj tseem siv, feem ntau ua ke nrog precision angular hu npas kabmob lossis cov ntsawj kabmob. Cov kabmob no tuaj yeem tiv taus qhov loj dua ntawm cov hluav taws xob thiab cov khoom nrawm dua. Ob kab ntawm chais nyob rau hauv kev coj tus kheej raug teem nyob rau hauv ib txoj kev hla. Qhov ntau zaus ntawm kev hloov pauv yog nce ntxiv ntau tshaj li qhov ntawm ib leeg kabmob, thiab cov khoom siv tau tso cia tsawg dua 60-70. Cov kabmob no feem ntau los ntawm ob hom: NN30, NN30K, lawv cov nplhaib sab hauv nrog flange, lub nplhaib sab nraud tuaj yeem sib cais; NNU49, NNU49K, lawv lub nplhaib sab nraud nrog flange, lub nplhaib sab hauv tuaj yeem sib cais. Cov nplhaib sab hauv ntawm NN30K thiab NNU49K series yog nrog conical qhov (1:12 taper), uas yog sib phim nrog cov ntawv xov xwm nrog ntawv xov (spindle). Axial lub zog ntawm lub nplhaib sab hauv tuaj yeem ua rau lub nplhaib puab sab hauv, kom qhov kev tshem tawm kabmob tuaj yeem raug txo lossis tseem raug tiv thaiv ua ntej (lub xeev tsis pom zoo). Cov kabmob nrog qhov cylindrical qhov feem ntau yog kub-ntim, cuam tshuam sib txuam yog siv los txo cov kabmob kev ua kom tsis muaj kabmob, lossis preload bearing. Rau NNU49 series cov kabmob nrog lub nplhaib tshem cov ntiv nplhaib sab hauv, lub nplhaib puab tau nruab nrog ntxaiv thiab tom qab ntawd cov kab kev sib tw tau zoo kom txhim kho kev sib hloov qhov tseeb ntawm qhov ntxaiv.
3.Precision tapered cov menyuam bearings:
Hauv qee qhov kev thov ntawm cov cuab yeej siv tshuab hnyav nrog qee yam yuav tsum tau ua kom nrawm, xws li cov khib nyiab sib tsoo ntawm cov ntawv tsis raug, roj raj hlau tshuab tshuab, lub tshuab ua haujlwm hnyav thiab lub tshuab txiav tshuab, nws yog cov qauv zoo los xaiv precision tapered cov menyuam cov kabmob. Vim tias cov menyuam ntawm tapered cov menyuam cov kabmob yog qhov tsim ntawm kab sib chwv, nws tuaj yeem muab kev coj zoo thiab lub peev xwm ntim rau ntxaiv. Txuas ntxiv rau tapered cov menyuam cov kabmob yog ib hom kev ntshiab yob cov kabmob tsim uas tuaj yeem txo qhov kev sib tw khiav thiab cua sov ntawm cov kabmob thiab xyuas kom qhov kev sib hloov ceev thiab qhov tseeb ntawm qhov ntxaiv. Txij li thaum tapered cov menyuam cov kabmob tuaj yeem kho axial preload (kev tshem tawm) thaum lub sijhawm teeb tsa, qhov no tso cai rau cov neeg siv khoom zoo dua cov kabmob kev sib cais kom haum thoob plaws hauv cov kabmob kev ua neej.
Cim npe nrov: ntxaiv bearings, Suav teb, chaw tsim tshuaj paus, hoobkas, Mekas, cia muag
