30304 Tapered Roller Bearing Specifications
Bore d (mm)
20
Outer D (mm)
52
Width B (mm)
16.25
Dynamic rating Cr (kN)
35.7
Static rating Cor (kN)
34.5
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 30304?
RUIST 30304 Tapered Roller Bearing: bore d = 20 mm, outer diameter D = 52 mm, width/height B = 16.25 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 30304 carry?
Dynamic load rating Cr = 35.7 kN and static load rating Cor = 34.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 30304 typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 30304 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 20 mm, OD 52 mm and width 16.25 mm match ISO dimensions, 30304 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.