28579/28521 Tapered Roller Bearing Specifications
Bore d (mm)
49.987
Outer D (mm)
92.075
Width B (mm)
24.608
Dynamic rating Cr (kN)
91.6
Static rating Cor (kN)
130
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 28579/28521?
RUIST 28579/28521 Tapered Roller Bearing: bore d = 49.987 mm, outer diameter D = 92.075 mm, width/height B = 24.608 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 28579/28521 carry?
Dynamic load rating Cr = 91.6 kN and static load rating Cor = 130 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 28579/28521 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 28579/28521 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 49.987 mm, OD 92.075 mm and width 24.608 mm match ISO dimensions, 28579/28521 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.