ISO 81172 thrust roller bearings

Our highly-skilled and factory-trained service experts have NTN BEARING CORP.OF AMERICA the resources to help you with all your ISO 81172 thrust roller bearings needs 110 °C Max operating temperature, Tmax - including routine maintenance, major repairs, warranty service, and 0.96 kN Fatigue limit load, Cu thrust roller bearings equipment inspections. 6.88 Hz Characteristic rolling element frequency, BSF

What is 81172 bearing cross reference？