Zhejiang Jinfa Bearing Co., Ltd--a professional manufacture of low noise deep groove ball bearing and taper roller bearing and non-standard bearing for ten years. And got ISO9001 in 2002 and ISO/TS16949 in 2008. 1)Bearing type: 6000-6024,6200-6224, 6300-6324, 6400-6420, 2)Model: Open,Z,ZZ,RZ,2RZ,2RS 3)Noise level: EMQV1 Z1, EMQ V2 Z2, EMQ V3 Z3, EMQ V4 Z4 4)Quality level: ABEC-1 (P0), ABEC-3 (P6) , ABEC-5(P5) 5)Application: home appliances, low noise and high speed electric motors, automotive components, pumps, machinery, automobile 6)Bearing can be used at operating temperature: from -86F to +392F Should any of these items be of interest to you, please let me know. I shall be happy to give you details. I am always on duty, I can and shall reponse to any questions you want to know, large or small, within TWELVE hours--even on weekend.