NU309EW Cylindrical Roller Bearing Specifications
Bore d (mm)
45
Outer D (mm)
100
Width B (mm)
25
Dynamic rating Cr (kN)
120
Static rating Cor (kN)
98.5
Grease limit speed (r/min)
6000
Oil limit speed (r/min)
7500
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NU309EW?
RUIST NU309EW Cylindrical Roller Bearing: bore d = 45 mm, outer diameter D = 100 mm, width/height B = 25 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NU309EW carry?
Dynamic load rating Cr = 120 kN and static load rating Cor = 98.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NU309EW 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 NU309EW replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 45 mm, OD 100 mm and width 25 mm match ISO dimensions, NU309EW is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.