25577/25521 Tapered Roller Bearing Specifications
Bore d (mm)
42.875
Outer D (mm)
83.058
Width B (mm)
23.812
Dynamic rating Cr (kN)
94
Static rating Cor (kN)
99
Grease limit speed (r/min)
4500
Oil limit speed (r/min)
6000
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE 25577/25521?
RAYSDE 25577/25521 Tapered Roller Bearing: bore d = 42.875 mm, outer diameter D = 83.058 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 RAYSDE 25577/25521 carry?
Dynamic load rating Cr = 94 kN and static load rating Cor = 99 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE 25577/25521 typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE 25577/25521 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 42.875 mm, OD 83.058 mm and width 23.812 mm match ISO dimensions, 25577/25521 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.