The 977909 RICH is a high-precision single row tapered roller bearing designed to support heavy combined radial and axial loads. This bearing consists of an inner ring (cone), an outer ring (cup), and tapered rollers guided by a high-strength cage. The unique geometry of the tapered rollers ensures that all components roll toward a single common apex on the bearing axis, providing smooth rotation and high operational reliability. With a specific 46.673 mm bore, this model is frequently used in automotive applications, particularly in wheel hubs, transmissions, and differential systems where axial thrust is a critical factor. The robust construction allows for a high load-carrying capacity within a relatively compact 72 mm outer diameter. As a single row unit, it is typically mounted in pairs facing one another to provide rigid shaft support and handle thrust loads from both directions.
Transparency Note: This product is manufactured under the RICH brand. The code 977909 is used for identification and interchange purposes and does not imply affiliation with other manufacturers.
Data sheet
