RNA4844 Needle Roller Bearing Specifications
Bore d (mm)
240
Outer D (mm)
270
Width B (mm)
50
Dynamic rating Cr (kN)
238
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 RNA4844?
RUIST RNA4844 Needle Roller Bearing: bore d = 240 mm, outer diameter D = 270 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 RNA4844 carry?
Dynamic load rating Cr = 238 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 RNA4844 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 RNA4844 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 240 mm, OD 270 mm and width 50 mm match ISO dimensions, RNA4844 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.