Needle roller bearings yog cov menyuam bearings nrog cylindrical rollers uas yog nyias thiab ntev txheeb ze rau lawv txoj kab uas hla. Hom roller no hu ua rab koob roller. Txawm hais tias nws qhov me me cross-section, cov kabmob tseem muaj peev xwm ua haujlwm siab.
Koob cov menyuam bearings yog nruab nrog nyias thiab ntev rollers (cov menyuam txoj kab uas hla D Tsawg dua lossis sib npaug li 5 hli, L / D Ntau dua lossis sib npaug li 2.5, L yog cov menyuam ntev), yog li Cov qauv radial yog compact. Thaum lub puab txoj kab uas hla loj thiab lub peev xwm load yog tib yam li lwm yam bearings, lub sab nraud txoj kab uas hla yog qhov tsawg tshaj plaws.
Nws yog tshwj xeeb tshaj yog haum rau kev txhawb nqa cov qauv nrog txwv radial installation qhov ntev.
Qhov me me cross-sectional qhov siab ntawm koob rau cov menyuam bearings pab xyuas kom meej tias tag nrho lub tshuab yog lub teeb thiab compact. Yog li ntawd, lawv tau siv ntau yam kev siv, suav nrog tsheb, maus taus, lub cev muaj zog, cov cuab yeej siv tshuab, cov cuab yeej siv dav hlau, cov khoom siv hauv chaw ua haujlwm, thiab lwm yam kev lag luam machinery.
HK1214-RS koob rau cov menyuam bearing khoom, puab txoj kab uas hla yog 12 hli, txheej txoj kab uas hla yog 18 hli, thickness yog 14 hli
Hauv qab no yog cov lus ntawm HK 1214 koob rau cov menyuam kabmob:
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MAIN DIMENSION & Kev Ua Haujlwm |
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Fw |
12 hli |
Lower Roller Diameter |
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D |
18 mm |
Sab nraud |
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C |
14 mm |
Dav |
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Cr |
6500 N |
Radial Dynamic Load Rating |
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Cor |
7300 N |
Radial Static Load Rating |
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Cur |
880 N |
Radial Ultimate Fatigue Load |
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nG |
12, 000 1/min |
Txwv Ceev |
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nG Roj |
12, 000 1/min |
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Qhov hnyav |
10.21g |
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DIMENSION PARAMETER |
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C1 |
14 mm |
Lub nplhaib sab nraud |
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rmin ua |
0.8 hli |
Yam tsawg kawg nkaus Chamfer Size |
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Ua haujlwm kub |
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Tmin |
-20 degree |
Yam tsawg kawg nkaus ua haujlwm kub |
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Tmax |
100 degree |
Ua haujlwm kub siab tshaj plaws |
Qhov zoo ntawm rab koob rau cov menyuam bearings:
1.Kev sib txhuam me me
2. Kev siv hluav taws xob tsawg
3.High mechanical efficiency
4. Yooj yim pib
5.Qhov qhov ntev yog standardized, interchangeable, yooj yim rau nruab thiab disassemble, thiab yooj yim los tswj.
6.Compact qauv, lub teeb yuag thiab me axial loj.
7.High precision, siab sib hloov ceev, me me hnav thiab ntev kev pab cuam lub neej.
8.Qee bearings muaj kev ua tau zoo ntawm tus kheej thiab tsim nyog rau ntau lawm.
9.Lawv muaj qhov ruaj khov thiab txhim khu kev qha zoo thiab kev ua haujlwm siab ntau lawm.
10.Qhov kev sib txhuam torque yog qis dua li ntawm hydrodynamic bearings, yog li qhov kev sib txhuam kub nce thiab lub zog siv qis dua.
11.Qhov pib kev sib txhuam torque tsuas yog siab dua me ntsis ntawm kev sib txhuam torque
12.Qhov rhiab heev ntawm bearing deformation rau load hloov yog me dua li ntawm hydrodynamic bearings; tsuas yog ib qho me me xwb
13.Lub roj nplua nyeem tuaj yeem ua haujlwm tau zoo thiab tuaj yeem muab cov roj nplaum rau lub sijhawm ntev thaum ua haujlwm; qhov loj axial yog me dua li cov tsoos hydrodynamic bearings
Disadvantages ntawm koob roller bearings:
Lawv tsis nrov, cov qauv ntawm lub rooj zaum bearing yog qhov nyuaj, thiab tus nqi yog siab.
Txawm hais tias cov bearings zoo lubricated, ntsia kom raug, plua plav-pov thawj thiab noo noo-pov thawj, thiab ua haujlwm ib txwm, lawv yuav ua tsis tiav vim qaug zog ntawm qhov chaw sib cuag.
Cov txheej txheem ntau lawm ntawm koob Roller:
