38.1 mm x 82.55 mm x 19.05 mm SKF RLS 12 Single Row Ball Bearings

SKF Bearing offers 23130-e1a-k-m-qbl SKU: a 38.1 mm x 82.55 mm x 19.05 mm SKF RLS 12 Single Row Ball Bearings selection of Genuine SKF Bearing at Wholesale Jinan Chenyu Bearing Import & Export Co., Ltd. Prices. We are a 38.1 mm x 82.55 mm x 19.05 mm SKF RLS 12 Single Row Ball Bearings 38.1 mm x 82.55 mm x 19.05 mm Certified Parts Retailer

What is RLS 12 bearing interchange？