Parizvino, mazhinji emapulleys echinyakare pamusika akakandwa simbi kana simbi castings, iyo inodhura uye yakaoma mukuita, uye mutengo chaiwo wakakwira zvakanyanya kupfuura iwo.nyundo dzenaironi.Zvigadzirwa zvenaironi zvine simba rekutakura, asi kushomeka kusakara uye zvinopfekwa nyore netambo dzesimbi.

Asi isu tinokwanisa zvakare kushandura zviyero kugadzira zvirinani kuita nylon pulleys.Mushure mekushandisa iyo itsva nylon pulley, hupenyu hwebasa hwepulley hunogona kuwedzerwa nechina kusvika kashanu, uye hupenyu hwebasa retambo yetambo yesimbi inogona kuwedzerwa kanenge gumi.

Kuenzaniswa nesimbi yakakandwa pulleys,nyundo dzenaironiari 70% akareruka uye anowedzera kugadzirwa kwakanaka.Panguva imwecheteyo, inovandudzawo kushanda kwese kwemuchina, iyo iri nyore kugadzirisa, disassembly uye kusangana pasina mafuta ekuzora.

Mavhiri enylonvane hunhu hwekusina friction sparks uye yakasimba kuchengetedza kuita, iyo inogona kusangana nezvinodiwa zvenguva refu yekunze mashandiro.

Kubva kuma1970s, vagadziri vazhinji vekunze vanogadzira crane vakatora nylon pulleys sezvinhu zvakakosha zve crane.Parizvino, kambani yedu haina chete pulleys akakodzera cranes, asiwo akawanda nylon zvigadzirwa zvakakodzera kune mamwe maindasitiri, ayo anogamuchirwa zvakanaka nemakambani mazhinji mumusika.

Nylon inodzivirira abrasion uye haingodzikisi huremu hwese hwechigadzirwa, asi zvakare inodzivirira uye inotsigira nzvimbo dzesimbi.Parizvino,nyundo dzenaironiave achishandiswa zvakanyanya mukusimudza midziyo yakaita sengarava nema lifti.