30 mm x 47 mm x 22 mm 30 mm x 47 mm x 22 mm SIGMA GE 30 ES plain bearings

30 mm x 47 mm x 22 mm 30 mm x 47 mm x 22 mm SIGMA GE 30 ES plain bearings 62mm D Standard Clearance: Manufacturers , Online Wholesale Suppliers‎ ! NSK bearing Trading Co., Ltd 30 mm x 47 mm x 22 mm

What is GE 30 ES bearing interchange？