N308W Cylindrical Roller Bearing Specifications
Bore d (mm)
40
Outer D (mm)
90
Width B (mm)
23
Dynamic rating Cr (kN)
72
Static rating Cor (kN)
57
Grease limit speed (r/min)
5600
Oil limit speed (r/min)
6700
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST N308W?
RUIST N308W Cylindrical Roller Bearing: bore d = 40 mm, outer diameter D = 90 mm, width/height B = 23 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST N308W carry?
Dynamic load rating Cr = 72 kN and static load rating Cor = 57 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST N308W 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 N308W replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 40 mm, OD 90 mm and width 23 mm match ISO dimensions, N308W is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.