Qhov tseem ceeb ntawm cov kabmob hauv cov tshuab niaj hnub no yog qhov tseeb ntawm tus kheej-, tab sis cov nqi kho txhua xyoo thiab lub sijhawm poob qis vim muaj kev puas tsuaj rau yam tsawg kawg ib lab daus las, nrog kev poob qis dua ntau dua. Ib qho laj thawj tseem ceeb rau qhov no yog kev yuav cov kabmob cuav. Muaj coob tus neeg yuav ntsib qhov teeb meem no. Yog li ntawd, thaum xyuas kom zoo installation thiab txij nkawm ntawm bearings, qhov tseem ceeb tshaj plaws yog kom tsis txhob yuav fake bearings.
I. Yim yam kev dag ntxias nyob rau hauv Bearing Manufacturing
1. Siv hlau lossis carbon steel los tsim cov bearings (tsis txaus hardness) thiab kho cov kabmob uas tsis raug (tsis txaus precision);
2. Labeling inferior bearings los yog cov los ntawm cov chaw tsim khoom me me nrog cov cim lag luam ntawm cov tuam txhab loj, ua pov thawj cov khoom ntim sab hauv thiab sab nrauv thiab cov ntawv pov thawj ntawm kev ua tau zoo-paub manufacturers;
3. Ua tus neeg siv, tus neeg faib khoom, tus neeg sawv cev, lossis txawm tias cov chaw tsim khoom lag luam ntawm cov chaw tsim khoom paub zoo-;
4. Siv cov kabmob tsis zoo los ua tus kabmob tiag tiag;
5. Kev coj tus kheej bearings los ua tus neeg siab -precision bearings;
6. Sib xyaw cov khoom zoo nrog cov khoom zoo siab;
7. Muag cov khoom cuav ntawm tus nqi tiag, muag cov khoom tiag ntawm tus nqi siab, thiab siv tus nqi cuav;
8. Muab cov khoom cuav rau cov nqi pheej yig thiab cov khoom zoo rau siab - cov khoom zoo.
II. Cov yam ntxwv ntawm Counterfeit Bearings
1. Lawv zoo ib yam li cov bearings tiag, tab sis lawv cov load- bearing muaj peev xwm, txwv ceev, thiab lwm yam., yog unreliable rau lawv npaj siv.
2. Txhawm rau txo cov nqi tsim khoom, tsis tas yuav tsum muaj qhov tseeb.
3. Txhawm rau txo tus nqi, cov khoom siv hlau tsis zoo yog siv.
4. Kev ntim khoom tsis raug thiab kev thauj mus los tsis zoo cuam tshuam rau qhov tseeb ntawm cov kabmob.
III. Kev cuam tshuam ntawm Cov Kabmob cuav
1. Lub neej ua haujlwm luv. Bearings yuav ua tsis tiav ntxov thaum siv, ncaj qha nce cov peev nyiaj hauv tuam txhab thiab ua rau poob nyiaj txiag.
2. Cov xwm txheej txaus ntshai tshwm sim los ntawm cov kabmob cuav. Kev tsis ua haujlwm siab ntawm cov kabmob cuav tuaj yeem ua rau muaj kev hloov pauv sai sai, nres nres, lossis overheating thiab hluav taws kub hauv cov tshuab.
3. Kev cuam tshuam ntawm kev lag luam bearing kev yuav khoom thiab kev sib raug zoo. Tsav los ntawm cov nyiaj tau los, kev ntseeg siab raug puas tsuaj, ua rau cov tuam txhab lag luam tsis tuaj yeem tiv thaiv lawv tus kheej thiab cov neeg siv tsis ntseeg.
IV. Bearing Brands ntawm Kev Ua Lag Luam
1. Cov kabmob txawv teb chaws: SKF (Sweden), NSK (Nyiv), thiab TIMKEN (USA), thiab lwm yam.
2. Hom kabmob hauv tsev: Luoyang Bearing, Wafangdian Bearing, thiab lwm yam.
Tsis muaj qhov zoo lossis qhov phem hauv cov kabmob; nws tsuas yog nyob ntawm seb lawv siv li cas thiab qhov twg lawv tau muab tso rau.
V. Tsib kauj ruam txhawm rau txheeb xyuas cov kabmob
1. Kev ntim khoom sab nraud thiab daim ntawv pov thawj ntawm kev sib haum xeeb;
2. Daim Ntawv Pov Thawj;
3. Zuag qhia tag nrho;
4. Hlau Sheen;
5. Mloog suab.
1. Kev ntim khoom sab nraud thiab daim ntawv pov thawj ntawm kev sib haum xeeb
A. Puas yog lub hnab ntim sab nrauv pom tseeb? Feem ntau, cov khoom lag luam muaj npe nrov muaj lawv tus kheej tsim los tsim cov khoom ntim sab nrauv thiab npaj rau kev tsim khoom hauv cov chaw tsim nyog. Yog li ntawd, lub ntim yog meej heev, los ntawm kab mus rau xim blocks, tsis muaj ambiguity.
B. Puas yog daim ntawv pov thawj ntawm kev ua raws cai?
2. Daim Ntawv Pov Thawj
A. Cov kabmob lub cev yuav muaj lub npe, tus lej, thiab lwm yam., stamped rau nws;
B. Cov ntawv sau hauv tsev muaj tsawg heev. Cov tuam txhab muaj npe nrov feem ntau siv laser etching, nias cov ntawv ua ntej cov kabmob tau txais kev kho cua sov. Yog li ntawd, txawm tias tsab ntawv me me, nws yog qhov tob tob thiab meej heev. Cov khoom cuav feem ntau muaj cov ntawv tsis meej; vim cov txheej txheem luam ntawv tsis zoo, cov ntawv sau zoo nkaus li, thiab qee qhov tuaj yeem rubbed tau yooj yim.
C. Cov hlau stamping ntawm NSK bearings los ntawm Nyiv xav tias imperceptible rau kov, tab sis nws muaj peev xwm yuav hnov los ntawm maj mam kov nws nrog ib tug ntiv tes. Nyob rau feem ntau domestically tsim los yog cuav bearings, lub stamp yog tsa los yog recessed rau hauv cov kabmob nto.
3. Zuag qhia tag nrho
A. Puas muaj tej yam teeb meem uas zoo nkaus li zoo, tsis zoo machining zoo, los yog tseem ceeb runout? Bearings yog precision mechanical khoom nrog ib tug nto roughness hauv qab no 1.6.
B. Puas muaj huab cua stains? Cov bearings tsim hauv tsev zoo li yuav tawm cov roj tuab thiab muaj qhov pom ntawm xeb - tiv thaiv tsis hnov tsw. Cov kabmob tuaj txawv teb tiag qhia yuav luag tsis muaj kab ntawm xeb -cov roj tiv thaiv.
C. Puas yog tiag? Qhov yuam kev pom tseeb hauv cov lus qhia tshwj xeeb thiab cov qauv suav nrog qhov tsis muaj qhov sib txuas sab hauv ntawm CAK bearings thiab tsuas muaj ib qho - sab foob ntawm 2RS bearings.
4. Gloss
Qhov zoo ntawm cov kabmob yog nyob ntawm qhov zoo ntawm cov hlau thiab qib ntawm kev kho cua sov.
A. Cov kabmob chamfers tsis polished tom qab kev kho cua sov. Qhov tseeb bearing chamfers yog heev du thiab muaj ib tug grey metallic luster. Cov khoom lag luam tsis zoo tuaj nyob rau hauv ob hom: ib qho yog tsim los ntawm cov khoom siv siab heev -cov kabmob zoo hauv tsev, nrog cov chamfers du, tab sis cov xim tsis yog grey metallic luster; lwm qhov yog tsim los ntawm cov khoom siv los ntawm cov chaw tsim khoom me me, nrog cov chamfers ntxhib, dents, thiab dull tag.
B. Cov kabmob hlau tau muab faib ua rau pawg: siab- carbon chromium bearing steel, chromium-cov kabmob dawb, carburized bearing steel, stainless bearing steel, nruab nrab- kub bearing steel, thiab anti-magnetic bearing steel. a. Yog tias pom muaj kab xeb, cov khoom muaj teeb meem; b. Yog tias pom muaj qhov cuam tshuam loj heev, cov khoom muaj teeb meem; c. Yog hais tias lub pob bearings los yog rollers yog tsis sib xws thickness, cov chaw tsim tshuaj paus tau txiav cov ces kaum.
5. Mloog lub suab
Tuav lub tes tsho sab hauv nrog koj sab laug thiab tig lub tes tsho sab nraud nrog koj sab tes xis, mloog cov suab nrov txawv txawv. Feem ntau cov khoom cuav yog tsim nyob rau hauv cov xwm txheej tsis zoo, inevitably qhia impurities xws li xuab zeb rau hauv cov kabmob thaum lub sijhawm tsim khoom, uas yuav ua rau lub suab txawv txawv thaum tig.
