NJ304ET Cylindrical Roller Bearing Specifications
Bore d (mm)
20
Outer D (mm)
52
Width B (mm)
15
Dynamic rating Cr (kN)
39
Static rating Cor (kN)
26.9
Grease limit speed (r/min)
12000
Oil limit speed (r/min)
15000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NJ304ET?
RUIST NJ304ET Cylindrical Roller Bearing: bore d = 20 mm, outer diameter D = 52 mm, width/height B = 15 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NJ304ET carry?
Dynamic load rating Cr = 39 kN and static load rating Cor = 26.9 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NJ304ET 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 NJ304ET replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 20 mm, OD 52 mm and width 15 mm match ISO dimensions, NJ304ET is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.