A cikin rarrabuwa na bawul ɗin eccentric, ban da bawul ɗin eccentric sau uku, ana amfani da bawul ɗin eccentric biyu ko'ina.Babban aiki bawul (HPBV), halayensa: tsawon rayuwa, lokutan canzawar dakin gwaje-gwaje har zuwa sau miliyan 1.

Idan aka kwatanta da bawul ɗin malam buɗe ido na tsakiya, bawul ɗin malam buɗe ido biyu ya fi juriya ga babban matsin lamba, yana da tsawon rai da kwanciyar hankali.
HPBV yadu amfani a cikin fayil na ruwan teku, sinadaran masana'antu, HVAC, lalata yanayi, da dai sauransu.
Abubuwan da ke biye sune manyan bawuloli masu inganci da ake fitarwa zuwa Turai,takamaiman bayanai sune kamar haka;

Matsa lamba: 300LB
Girman: 8 ″
Haɗin kai: Wafer
Jiki & Disc: CF8M
Tsawon lokaci: 17-4 ph
Wurin zama: RPTFE