45 mm x 100 mm x 25 mm 45 mm x 100 mm x 25 mm FBJ QJ309 FBJ Bearing

What are the Insert Bearings Cyli Category dimensions of a 45 mm x 100 mm x 25 mm 45 mm x 100 mm x 25 mm FBJ QJ309 FBJ Bearing? FBJ Bearing Manufacturing 45 mm x 100 mm x 25 mm Service . UBC Mechanical Electronic Instrument Co., Ltd. Get Your Free, Instant Quote‎！

What is QJ309 bearing interchange？