18690/18620/B Tapered Roller Bearing Specifications
Bore d (mm)
46.038
Outer D (mm)
79.375
Width B (mm)
17.462
Dynamic rating Cr (kN)
48.2
Static rating Cor (kN)
61.3
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 18690/18620/B?
RUIST 18690/18620/B Tapered Roller Bearing: bore d = 46.038 mm, outer diameter D = 79.375 mm, width/height B = 17.462 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 18690/18620/B carry?
Dynamic load rating Cr = 48.2 kN and static load rating Cor = 61.3 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 18690/18620/B 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 18690/18620/B replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 46.038 mm, OD 79.375 mm and width 17.462 mm match ISO dimensions, 18690/18620/B is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.