plastic deep groove ball bearing 1.High quality, competitive price 2.Cage:Steel,Brass 3. ... your needs4. Can provide small & miniature standard and non-standard ball berings5. Reasonable price6. Technology: low vibration, low noise, high precision ... , Design Service Offered, Buyer Label Offered 2. our brand :KNZ Deep groove ball bearing We have Open ,Z,ZZ,RS,2RS,RZ,2RZ,N ...