3577/3525 Tapered Roller Bearing Specifications
Bore d (mm)
41.275
Outer D (mm)
87.312
Width B (mm)
30.162
Dynamic rating Cr (kN)
105
Static rating Cor (kN)
134
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 3577/3525?
RUIST 3577/3525 Tapered Roller Bearing: bore d = 41.275 mm, outer diameter D = 87.312 mm, width/height B = 30.162 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 3577/3525 carry?
Dynamic load rating Cr = 105 kN and static load rating Cor = 134 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 3577/3525 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 3577/3525 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 41.275 mm, OD 87.312 mm and width 30.162 mm match ISO dimensions, 3577/3525 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.