HR31305J Tapered Roller Bearing Specifications
Bore d (mm)
25
Outer D (mm)
62
Width B (mm)
18.25
Dynamic rating Cr (kN)
47
Static rating Cor (kN)
40.5
Grease limit speed (r/min)
5600
Oil limit speed (r/min)
8000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST HR31305J?
RUIST HR31305J Tapered Roller Bearing: bore d = 25 mm, outer diameter D = 62 mm, width/height B = 18.25 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST HR31305J carry?
Dynamic load rating Cr = 47 kN and static load rating Cor = 40.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST HR31305J 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 HR31305J replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 25 mm, OD 62 mm and width 18.25 mm match ISO dimensions, HR31305J is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.