HR30306J Tapered Roller Bearing Specifications
Bore d (mm)
30
Outer D (mm)
72
Width B (mm)
20.75
Dynamic rating Cr (kN)
73
Static rating Cor (kN)
60
Grease limit speed (r/min)
5300
Oil limit speed (r/min)
7500
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST HR30306J?
RUIST HR30306J Tapered Roller Bearing: bore d = 30 mm, outer diameter D = 72 mm, width/height B = 20.75 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST HR30306J carry?
Dynamic load rating Cr = 73 kN and static load rating Cor = 60 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST HR30306J 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 HR30306J replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 30 mm, OD 72 mm and width 20.75 mm match ISO dimensions, HR30306J is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.