28,575 mm x 62 mm x 38,1 mm TIMKEN ER18 Insert Bearings Cylindrical OD

Insert Bearings Cylindrical OD offers a 28,575 mm x 62 mm x 38,1 mm TIMKEN ER18 Insert Bearings Cylindrical OD selection 28,575 mm x 62 mm x 38,1 mm of Genuine Insert Bearings Cylindrical OD at Wholesale Prices. We are 17.04 Hz Characteristic outer ring frequency, BPF0 a COOPER BEARING LIMITED 28,575 mm x 62 mm x 38,1 mm TIMKEN ER18 Insert Bearings Cylindrical OD P0 Precision class Certified Parts Retailer

What is ER18 bearing cross reference？