... 30200, 30300, 32200, 32300, 33000, etc. Ring MaterialChrome Steel, Carbon steel, Stainless steel Tolerance gradeGB/T307.1-205 ID Size ... ,taper roller thrust bearing ,Large bearing.Cage Materialbearing steel / carbon steel or according to the clients’ requirementPrecisionP0,P4,P5,P6Quality ... ’ requirementContactTel:86-13181065223 Fax:+86-0635-8870015 High quality low price roller bearings hot sale!!