10pcs S693 2RS Hybrid Ceramic Bearing 3x8x4 ABEC7 Stainles Steel Ceramic Bearing S693C SMR693 RS 2RS No Grease 3*8*4 Bearing 10pcs S693 2RS Hybrid Ceramic Bearing 3x8x4 ABEC7 Stainles Steel Ceramic Bearing S693C SMR693 RS 2RS No Grease 3*8*4 Bearing. Sale price : $21.73 Category : Home Improvement