S693zz Stainless Steel Shielded Abec-5 Ceramic Ball Bearings 3X8X4 Ningbo Sanzo Import and Export Co., Ltd. Base Info Description Pre：693-2RS Sealed Ball Bearings 3mm X 8mm X 4mm Next：S693-2RS Sealed Stainless Steel Miniature Ceramic Ball Bearing 4X8X3
