30217J Tapered Roller Metric Type

The 30217J is a tapered roller bearing with an 85 mm bore diameter, conforming to metric ISO 355 standards. Tapered roller bearings use conical rollers arranged between inner and outer ring raceways to handle combined radial and axial loads efficiently.

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. The tapered design allows for precise adjustment of bearing clearance during installation.