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3979/3920
The 3979/3920 is a tapered roller bearing set consisting of a cone (inner ring with rollers and cage) and cup (outer ring). Tapered roller bearings use conical rolling elements to support combined radial and axial loads, with load capacity proportional to contact angle.
This inch-series bearing set is commonly used in automotive axles, wheel hubs, gearboxes, and industrial equipment requiring precise positioning and capacity for both radial and thrust loads. The two-piece design allows for bearing clearance adjustment during installation.
Interchange / cross reference
ACF 258811ALLISC 0202584ALLISC 02025845ALLISC 12918ALLISC 2025843ALLISC 251114ALLISC AX73921ALLISC G838ALLISC X23540AM 111E050299ARAMCO 1331655000ARAMCO 1331657400AUSTIN 312525CHICAGO RAWHIDE BR3979CHRYSL 1117540
Cross-references are provided as a guide — verify dimensions and fit for your application.
3979/3920
For large orders ($2000+) please inquire by email.
Measurement Type
Imperial
Inner Diameter (ID)
2 1/4 in
Outside Diameter (OD)
4.4375 mm / 4 7/16 in
Width
1 3/16 in
Sealing
Open
Precision Class
ISO P0
Arrangement
One
Ball Material
Through Hardened Steel
Bearing Type
Tapered Roller Bearing
Other Features
Single Row | Tapered Roller Bearing
Component
Assembly
Number of Tapered Rows
1
Weight (kg)
1.4
Basic Number
3979/3920
UNSPSC
31171516
