Pib-up
Lub xyoo pua 17th yog lub sijhawm pib ntawm cov kabmob niaj hnub.
Galileo tau ua qhov kev piav qhia ntxov tshaj plaws ntawm "lub pob ruaj khov" lossis "lub tawb pob" pob kabmob, tab sis nws tseem nyob hauv daim ntawv tsim. Tau ntev, Galileo lub tswv yim ntawm kev txhim kho cov kabmob ntawm lub tshuab tsis tau siv.
Nws tsis yog txog xyoo 1794 uas thawj patent rau lub pob channel tau yug los, thiab cov chaw tsim khoom hlau hauv tebchaws Askiv tau siv cov pob bearings los tsim cov axle bearings rau carriages. Txij thaum ntawd los txog rau xyoo 1850 thiab 1860s, pob bearings tau siv dav hauv cov menyuam yaus carousels, kiv cua shafts, tshuab phom turrets ntawm warships, armchairs thiab tsheb kauj vab.
Xyoo 1883, FAG tus tsim Friedrich Fischer tau npaj lub tswv yim ntawm kev siv cov tshuab tsim khoom tsim nyog los zom cov pob steel ntawm tib qhov loj thiab qhov tseeb roundness. Lub zeem muag no tau tsim lub hauv paus rau kev lag luam bearing.
Nyob rau hauv 1895, Henry Timken tau tsim thawj tapered menyuam bearing, patented nws peb xyoos tom qab ntawd thiab tsim lub tuam txhab Timken.
Xyoo 1907, Sven Winquist ntawm SKF Bearing Factory tau tsim thawj tus kheej cov pob bearings niaj hnub no.
Lub sijhawm no, Tuam Tshoj tsis ua haujlwm. Thaum lub sij hawm Qing Dynasty, nws muaj peev xwm tsim tau zoo-ua rolling bearings.
Los ntawm lub xyoo pua 17th mus rau lub xyoo pua 19th, niaj hnub bearings tau tsim rau ob puas xyoo, thiab kev lag luam ntawm bearings tau pib.
