387A/382 Tapered Roller Bearing Specifications
Bore d (mm)
57.15
Outer D (mm)
98.425
Width B (mm)
21
Dynamic rating Cr (kN)
84.2
Static rating Cor (kN)
107
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 387A/382?
RUIST 387A/382 Tapered Roller Bearing: bore d = 57.15 mm, outer diameter D = 98.425 mm, width/height B = 21 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 387A/382 carry?
Dynamic load rating Cr = 84.2 kN and static load rating Cor = 107 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 387A/382 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 387A/382 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 57.15 mm, OD 98.425 mm and width 21 mm match ISO dimensions, 387A/382 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.