387A Tapered Roller Bearing Specifications
Bore d (mm)
57.15
Outer D (mm)
—
Width B (mm)
21.946
Dynamic rating Cr (kN)
100
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE 387A?
RAYSDE 387A Tapered Roller Bearing: bore d = 57.15 mm, outer diameter D = — mm, width/height B = 21.946 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE 387A carry?
Dynamic load rating Cr = 100 kN and static load rating Cor = — kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE 387A typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE 387A replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 57.15 mm, OD — mm and width 21.946 mm match ISO dimensions, 387A is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.