NN3920MB Cylindrical Roller Bearing Specifications
Bore d (mm)
100
Outer D (mm)
140
Width B (mm)
30
Dynamic rating Cr (kN)
122
Static rating Cor (kN)
182
Grease limit speed (r/min)
6300
Oil limit speed (r/min)
7500
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NN3920MB?
RUIST NN3920MB Cylindrical Roller Bearing: bore d = 100 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 NN3920MB carry?
Dynamic load rating Cr = 122 kN and static load rating Cor = 182 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NN3920MB 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 NN3920MB replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 100 mm, OD 140 mm and width 30 mm match ISO dimensions, NN3920MB is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.