30310J Tapered Roller Metric Type

The 30310J is a metric tapered roller bearing with a 50 mm bore diameter, conforming to ISO 355 standards. Tapered roller bearings use conical raceways and tapered rollers to handle combined radial and axial loads, with contact angles optimized for heavy-duty applications.

This bearing type is commonly used in automotive wheel hubs, gearboxes, differential assemblies, and industrial machinery where both radial and thrust loads must be supported. Tapered roller bearings are typically mounted in pairs or groups to accommodate bi-directional thrust loads.