2558/2523 Tapered Roller Bearing Specifications
Bore d (mm)
30.162
Outer D (mm)
69.85
Width B (mm)
23.812
Dynamic rating Cr (kN)
77.5
Static rating Cor (kN)
94.4
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 2558/2523?
RUIST 2558/2523 Tapered Roller Bearing: bore d = 30.162 mm, outer diameter D = 69.85 mm, width/height B = 23.812 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 2558/2523 carry?
Dynamic load rating Cr = 77.5 kN and static load rating Cor = 94.4 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 2558/2523 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 2558/2523 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 30.162 mm, OD 69.85 mm and width 23.812 mm match ISO dimensions, 2558/2523 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.