NA4872 Needle Roller Bearing Specifications
Bore d (mm)
360
Outer D (mm)
440
Width B (mm)
80
Dynamic rating Cr (kN)
627
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 NA4872?
RAYSDE NA4872 Needle Roller Bearing: bore d = 360 mm, outer diameter D = 440 mm, width/height B = 80 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE NA4872 carry?
Dynamic load rating Cr = 627 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 NA4872 typically used?
Needle Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE NA4872 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 360 mm, OD 440 mm and width 80 mm match ISO dimensions, NA4872 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.