Hydraulic twj tso kua mis	Lub tog raj kheej thaiv	Nias tus pin	Valve phaj	Lub tshuab ntxhua khaub ncaws
Piston lub cev muaj zog	Piston khau	Snap nplhaib	Nkawm khau	Roj foob
Piston twj tso kua mis	Retainer phaj	Coil caij nplooj ntoos hlav	Cov kabmob phaj	Friation phaj
iav twj tso kua mis	Pob qhia	Disk caij nplooj ntoos hlav	Swash phaj	Hlau phaj

Cov kua dej hydraulic yuav tsum raug xaiv kom qhov kev khiav hauj lwm viscosity nyob rau hauv kev khiav hauj lwm qhov kub thiab txias nyob rau hauv qhov zoo tshaj plaws ntau yam (ν opt saib ntxoov ntxoo ntawm daim duab xaiv). Peb pom zoo kom xaiv cov chav kawm viscosity siab dua hauv txhua kis. Piv txwv li: Ntawm qhov kub thiab txias ntawm X degree, kev khiav hauj lwm kub ntawm 60 degree yog teem rau hauv Circuit Court. Nyob rau hauv qhov zoo tshaj plaws kev khiav hauj lwm viscosity ntau yam (νopt., ntxoov ntxoo), qhov no sib raug rau cov chav kawm viscosity VG 46 los yog VG 68; xaiv: VG 68.