... like :Okind 0/2/3/7/8/9 series, R series, FR series, MR series, MF series. Supply Mini ball bearings.Features:1) Bore size ... : 2.5 - 9mm2) Model: Okind 0/2/3/7/8/9 series ... , R series, FR series, MR series, MF series3) "Open", "Z, "ZZ", "RS" and "2RS" bearings are ...