N228M Cylindrical Roller Bearing Specifications
Bore d (mm)
140
Outer D (mm)
250
Width B (mm)
42
Dynamic rating Cr (kN)
400
Static rating Cor (kN)
420
Grease limit speed (r/min)
2400
Oil limit speed (r/min)
3000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST N228M?
RUIST N228M Cylindrical Roller Bearing: bore d = 140 mm, outer diameter D = 250 mm, width/height B = 42 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST N228M carry?
Dynamic load rating Cr = 400 kN and static load rating Cor = 420 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST N228M 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 N228M replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 140 mm, OD 250 mm and width 42 mm match ISO dimensions, N228M is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.