Ngendlela yokuqala yokuthwala okuhambayo okuqondile, umugqa wezinduku zokhuni wabekwa ngaphansi komugqa wamapuleti okushelela. Ama-bearings anamuhla ahambayo asebenzisa isimiso esifanayo sokusebenza, ngaphandle kokuthi ngezinye izikhathi kusetshenziswa amabhola esikhundleni sama-roller. I-bearings elula kakhulu yi-shaft sleeve bearing, okuyi-bushing nje ehlanganiswe phakathi kwesondo ne-axle. Lo mklamo kamuva wathathelwa indawo ama-rolling bearings, asebenzisa ama-roller amaningi asilinda ukuze athathe indawo ye-bushing yokuqala, futhi into ngayinye egoqayo yayifana nesondo elihlukile.
Isibonelo sokuqala se-ball bearing satholakala emkhunjini waseRoma wasendulo owakhiwa ngo-40 BC eLake Naimi, e-Italy: i-ball bearing yokhuni yayisetshenziswa ukusekela itafula elijikelezayo. Kuthiwa uLeonardo da Vinci wachaza i-ball bearing cishe ngo-1500. Phakathi kwezici ezahlukahlukene ezingavuthiwe ze-ball bearing, iphuzu elibaluleke kakhulu ukuthi amabhola azoshayisana, okubangela ukungqubuzana okwengeziwe. Kodwa lokhu kungavinjelwa ngokufaka amabhola ezindlini ezincane. Ngekhulu le-17, uGalileo wachaza okokuqala i-ball bearing ye-"cage ball". Ekupheleni kwekhulu le-17, i-British C. wallow yaklama futhi yakhiqiza ama-ball bearing, afakwa emotweni yeposi ukuze isetshenziswe ekuhlolweni, kanti i-British P Worth yathola ilungelo lobunikazi le-ball bearing. I-rolling bearing yokuqala esebenzayo ene-cage yasungulwa ngumenzi wamawashi uJohn Harrison ngo-1760 ukwenza iwashi le-H3. Ekupheleni kwekhulu le-18, i-HR hertz yaseJalimane yashicilela iphepha ngokucindezeleka kokuxhumana kwama-ball bearing. Ngokusekelwe ezifinyelelwe yiHertz, i-r. I-Stribeck kanye ne-a Palmgren yaseSweden kanye nabanye benze inani elikhulu lokuhlolwa, okuye kwaba negalelo ekuthuthukisweni kwethiyori yokuklama kanye nokubalwa kokuphila kokukhathala kwama-rolling bearings. Ngemva kwalokho, uNP Petrov waseRussia wasebenzisa umthetho kaNewton we-viscosity ukubala ukungqubuzana kwama-bearing. Ilungelo lobunikazi lokuqala esiteshini sebhola latholwa nguPhilip Vaughn we-camson ngo-1794.
Ngo-1883, uFriedrich Fisher waphakamisa umqondo wokusebenzisa imishini yokukhiqiza efanelekile ukugaya amabhola ensimbi anobukhulu obufanayo kanye nokuzungeza okunembile, okwabeka isisekelo semboni yokuthwala. U-O Reynolds wenza ukuhlaziywa kwezibalo kokutholakala kukaThor kanye ne-equation kaReynolds etholwe, eyabeka isisekelo se-hydrodynamic lubrication theory.
Isikhathi sokuthunyelwe: Septhemba-01-2022