53177/53387X Tapered Roller Bearing Specifications
Bore d (mm)
44.45
Outer D (mm)
98.425
Width B (mm)
30.958
Dynamic rating Cr (kN)
92.8
Static rating Cor (kN)
104
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 53177/53387X?
RUIST 53177/53387X Tapered Roller Bearing: bore d = 44.45 mm, outer diameter D = 98.425 mm, width/height B = 30.958 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 53177/53387X carry?
Dynamic load rating Cr = 92.8 kN and static load rating Cor = 104 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 53177/53387X 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 53177/53387X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 44.45 mm, OD 98.425 mm and width 30.958 mm match ISO dimensions, 53177/53387X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.