RNA4838 Needle Roller Bearing Specifications
Bore d (mm)
210
Outer D (mm)
240
Width B (mm)
50
Dynamic rating Cr (kN)
220
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 RNA4838?
RUIST RNA4838 Needle Roller Bearing: bore d = 210 mm, outer diameter D = 240 mm, width/height B = 50 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST RNA4838 carry?
Dynamic load rating Cr = 220 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 RNA4838 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 RNA4838 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 210 mm, OD 240 mm and width 50 mm match ISO dimensions, RNA4838 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.