RNA4822 Needle Roller Bearing Specifications
Bore d (mm)
120
Outer D (mm)
140
Width B (mm)
30
Dynamic rating Cr (kN)
108
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 RNA4822?
RUIST RNA4822 Needle Roller Bearing: bore d = 120 mm, outer diameter D = 140 mm, width/height B = 30 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST RNA4822 carry?
Dynamic load rating Cr = 108 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 RNA4822 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 RNA4822 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 120 mm, OD 140 mm and width 30 mm match ISO dimensions, RNA4822 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.