RNA4902RS Needle Roller Bearing Specifications
Bore d (mm)
20
Outer D (mm)
28
Width B (mm)
13
Dynamic rating Cr (kN)
9.13
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST RNA4902RS?
RUIST RNA4902RS Needle Roller Bearing: bore d = 20 mm, outer diameter D = 28 mm, width/height B = 13 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST RNA4902RS carry?
Dynamic load rating Cr = 9.13 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 RUIST RNA4902RS typically used?
Needle Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST RNA4902RS replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 20 mm, OD 28 mm and width 13 mm match ISO dimensions, RNA4902RS is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.