Ukuthwala ukubethelwa kukwabizwa ngokuba yi-slewing bear, kwaye abanye abantu bayibiza ngokuba: ukuthwala okujikelezayo, ukuthwala ngokubulala.Amagama esiNgesi ngala: ukubethelwa kwentsimbi, ukubethela umsesane, ukuthwala umsesane, umsesane wokujula.Iibheringi ze-Slewing zisetyenziswa ngokubanzi kwishishini lokwenyani.Babizwa ngokuba "amalungu oomatshini".Ziindawo zoomatshini ezifuna intshukumo ejikelezayo phakathi kwezinto ezimbini, kodwa zikwafuna ukuthwala amandla e-axial, amandla eradial, kunye nomzuzu wokuthambeka ngaxeshanye.Inxalenye ebalulekileyo yothumelo oluyimfuneko.Ngophuhliso olukhawulezayo lweshishini loomatshini, iibheringi zokuxhela zisetyenziswe ngokubanzi kwizixhobo zaselwandle, oomatshini bobunjineli, oomatshini bokukhanya, oomatshini besinyithi, oomatshini, oomatshini boshishino kunye namanye amashishini.