55 mm x 120 mm x 29 mm TIMKEN 311KDD Single Row Ball Bearings

Timken Bearing N/A Minimum Buy Quantity offers a 55 mm x 120 mm x 29 mm TIMKEN 311KDD Single Row Ball Bearings selection of Genuine Fujian Zhenyuan Machinery Parts Co., Ltd. Timken Bearing at Wholesale Mounted Units & Inserts Category Prices. We are a 55 mm x 120 mm x 29 mm TIMKEN 311KDD Single Row Ball Bearings Certified Parts Retailer

What is 311KDD bearing cross reference？