Permanent Magnet DC lub cev muaj zog kuj los ntawm stator sib nqus ncej, rotor, txhuam, plhaub thiab lwm yam khoom siv, stator sib nqus ncej siv cov hlau nplaum ruaj khov (cov hlau nplaum tas mus li), ferrite, aluminium nickel cobalt, NdFeB thiab lwm yam ntaub ntawv. Raws li nws cov qauv qauv tuaj yeem muab faib ua cylindrical thiab ncoo hom thiab lwm yam. Feem ntau ntawm cov khoom siv hluav taws xob siv hauv VCR yog cov hlau nplaum cylindrical, thaum lub cev muaj zog siv cov cuab yeej hluav taws xob thiab cov khoom siv hluav taws xob hauv tsheb siv cov hlau nplaum tshwj xeeb thaiv.
Lub rotor feem ntau yog laminated nrog silicon steel ntawv, uas yog tsawg tshaj li tus naj npawb ntawm cov rotor ntawm lub tshuab electromagnetic DC. Feem ntau ntawm lub zog me me siv hauv VCR yog 3 qhov, thiab qib siab yog 5 qhov lossis 7 qhov. Lub enameled hlau yog qhov txhab nyob ib ncig ntawm ob lub qhov ntawm lub hauv paus ntawm lub rotor (qhov peb grooves yog peb windings), thiab cov pob qij txha yog welded rau ntawm daim hlau ntawm lub commutator feem. Cov txhuam hluav taws xob yog cov khoom siv hluav taws xob txuas nrog lub zog hluav taws xob thiab lub rotor winding, thiab muaj ob yam khoom ntawm conduction thiab abrasion. Txhuam hlau nplaum lub cev muaj zog txhuam siv ib daim ntawv hlau lossis hlau graphite txhuam, electro-chemical graphite txhuam.
Cov hlau nplaum ruaj khov DC lub cev muaj zog siv nyob rau hauv lub tshuab kaw lus siv lub tshuab hluav taws xob tsis tu ncua-ceev los yog hom centrifugal yam ruaj khov-ceev.