3379/3339 Tapered Roller Bearing Specifications
Bore d (mm)
34.925
Outer D (mm)
80.035
Width B (mm)
29.37
Dynamic rating Cr (kN)
106
Static rating Cor (kN)
129
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 3379/3339?
RUIST 3379/3339 Tapered Roller Bearing: bore d = 34.925 mm, outer diameter D = 80.035 mm, width/height B = 29.37 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 3379/3339 carry?
Dynamic load rating Cr = 106 kN and static load rating Cor = 129 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 3379/3339 typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 3379/3339 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 34.925 mm, OD 80.035 mm and width 29.37 mm match ISO dimensions, 3379/3339 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.