53632 mill ball bearing 160x340x114mm 160x340x114gbzhb or oem 53632 bearingseals typeopenmaterialbearing steel chrome steel gcr15 precision ratingp0p6p5p4p2 from zhongheng bearing coltd53632 mill ball bearing 160x340x114mm item30630 mill ball bearing typebearing steel gcr15 stainless steel lubrication oil or grease material.