• tus coj kev

Keeb kwm ntawm cov lus qhia tawm

Sim hloov zawv zawg nrog kev sib cuag dov tshwm sim tau lom zem txawm tias muaj hnub nyoog prehistoric. Daim duab tshuab yog daim duab ntsa hauv tebchaws Iziv. Lub pob zeb loj loj tau raug thauj khoom theej yooj yim ntawm Rolling Logs nteg hauv qab nws. Txoj kev uas siv lub cav tau nqa mus rau sab pem hauv ntej didicts li cas ib lub rolling ncig lub cev muaj nuj nqi hauv cov khoom siv niaj hnub no bearings.

Wall luam ntawv hauv Egypt

Txawm hais tias Rolling caij tawm cov lus tsa suab pom lawv txoj kev pib hloov mus ua lawv cov qauv siv hluav taws xob kom paub txog cov khoom siv kho kom meej thaum lub sijhawm xyoo pua 20th
Lub Txheej Txheem Txheej Txheem Ntawm Rolling CaijTawm Tawm BearingsTau tsim nyob rau xyoo 1946 thaum Asmeskas tuam txhab, Thomson, ua lag luam pob bushings (pob rov qab cov hom kev sib ncig). Lub hauv paus ntawm niaj hnub no cov lus qhia tawm (dov chav nyob nrog ntsia hlau) tuaj yeem pom hauv daim ntawv tso cai ntawm Fabkis hauv xyoo 1932. Qhov patterpassing no, txawm li encompassing tag nrho cov ntawm cov haujlwm ntawm kab tawm, tseem yuav tsum tau tos rau xyoo ua ntej lawv daim ntawv thov ua ntej hauv kev ua lag luam. Nyob rau lub sijhawm ntawd, ntau ob peb qhov kev siv Machinery uas siv cov khoom siv yob xws li pob screws lossis pob kis tau ua lag luam. Ntau hom pob bushings (linear pob bearings) tau kuj tau coj mus rau hauv kev ua lag luam, suav nrog qhib ntaus pob. Nyob rau hauv lub sijhawm no, kev tsim ntau thiab txhim kho cov hom sib xws tau ua rau tustawm ntawm phau ntawv qhia.

Tus qauv ntawm linear qhia1

Peb,Pyg-ZHejiang Pengyin Technology developmentment Co., Ltd, yog cov khoom siv tsim kho tshiab rau cov khoom siv hluav taws xob ntau tshaj li 20 xyoo.Yog cov cuab yeej tsim tawm hauv ntiaj teb ntau tshaj li 0.003 hli.


Lub Sijhawm Post: Tsib Hlis-13-2024