390/3920 Tapered Roller Bearing Specifications
Bore d (mm)
57.15
Outer D (mm)
112.712
Width B (mm)
26.967
Dynamic rating Cr (kN)
91.6
Static rating Cor (kN)
125
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 390/3920?
RUIST 390/3920 Tapered Roller Bearing: bore d = 57.15 mm, outer diameter D = 112.712 mm, width/height B = 26.967 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 390/3920 carry?
Dynamic load rating Cr = 91.6 kN and static load rating Cor = 125 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 390/3920 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 390/3920 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 57.15 mm, OD 112.712 mm and width 26.967 mm match ISO dimensions, 390/3920 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.