NN3924MB Cylindrical Roller Bearing Specifications
Bore d (mm)
120
Outer D (mm)
165
Width B (mm)
34
Dynamic rating Cr (kN)
158
Static rating Cor (kN)
251
Grease limit speed (r/min)
5300
Oil limit speed (r/min)
6400
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NN3924MB?
RUIST NN3924MB Cylindrical Roller Bearing: bore d = 120 mm, outer diameter D = 165 mm, width/height B = 34 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NN3924MB carry?
Dynamic load rating Cr = 158 kN and static load rating Cor = 251 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NN3924MB typically used?
Cylindrical Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST NN3924MB replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 120 mm, OD 165 mm and width 34 mm match ISO dimensions, NN3924MB is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.