25577/25523 Tapered Roller Bearing Specifications
Bore d (mm)
42.875
Outer D (mm)
82.931
Width B (mm)
26.988
Dynamic rating Cr (kN)
83.8
Static rating Cor (kN)
111
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 25577/25523?
RUIST 25577/25523 Tapered Roller Bearing: bore d = 42.875 mm, outer diameter D = 82.931 mm, width/height B = 26.988 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 25577/25523 carry?
Dynamic load rating Cr = 83.8 kN and static load rating Cor = 111 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 25577/25523 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 25577/25523 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 42.875 mm, OD 82.931 mm and width 26.988 mm match ISO dimensions, 25577/25523 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.