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30308J
The 30308J is a metric tapered roller bearing conforming to ISO 355 standards, featuring a 40 mm bore diameter and belonging to the 303 series. Tapered roller bearings use conical rolling elements between inner and outer ring raceways to handle combined radial and axial loads.
This bearing type is commonly used in automotive wheel hubs, gearboxes, transmissions, and industrial machinery where simultaneous radial and thrust loads are present. The tapered geometry allows for precise adjustment of bearing clearance during installation.
30308J
Bore/Inner Diameter Inch: 1.575
Bore/Inner Diameter mm: 40
For large orders ($2000+) please inquire by email.
Measurement Type
Metric
Inner Diameter (ID)
40 mm
Outside Diameter (OD)
90 mm
Width
25 mm
Sealing
Open
Precision Class
ABEC 1 | ISO P0
Cage
Pressed Steel
Series
303
Bearing Type
Tapered roller bearing
Other Features
Single Row | Tapered Roller Bearing
Component
Assembly
Number of Tapered Rows
1
Weight (kg)
0.267
Basic Number
30308
UNSPSC
31171516
