Smr74zzc Ceramic Stainless Steel Shielded Bearing 4X7X2.5 with Si3n4 Ball Ningbo Sanzo Import and Export Co., Ltd. Base Info Description Pre：Smr74zz Stainless Steel Double Shield Bearing 4X7X2.5mm Next：Smr84-2RS Stainless Steel Ceramic Si3n4 Ball Bearing 4X8X3
