... groove ball bearings description:1. Material: Gcr15 Chrome steel, Stainless steel or Carbon steel2. Brand: TINMY3. High quality ... Innder windage code: C0,C2,C3,C4,C56. Precision Grades: P0,P6,P5,P4,P2(ABEC1,ABEC3 ... 7. Seal form: OPEN, Z,ZZ,RS,2RS,N,NR Greese/OilAs you requirement, such as ... according to buyers requirementDetailsWe have complete process for the production and quality assurance to make ...