15125/15251D Tapered Roller Bearing Specifications
Bore d (mm)
31.75
Outer D (mm)
63.5
Width B (mm)
36.512
Dynamic rating Cr (kN)
81.4
Static rating Cor (kN)
21.1
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 15125/15251D?
RUIST 15125/15251D Tapered Roller Bearing: bore d = 31.75 mm, outer diameter D = 63.5 mm, width/height B = 36.512 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 15125/15251D carry?
Dynamic load rating Cr = 81.4 kN and static load rating Cor = 21.1 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 15125/15251D 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 15125/15251D replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 31.75 mm, OD 63.5 mm and width 36.512 mm match ISO dimensions, 15125/15251D is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.