18790/18720/B Tapered Roller Bearing Specifications
Bore d (mm)
50.8
Outer D (mm)
85
Width B (mm)
17.462
Dynamic rating Cr (kN)
50.6
Static rating Cor (kN)
67.5
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 18790/18720/B?
RUIST 18790/18720/B Tapered Roller Bearing: bore d = 50.8 mm, outer diameter D = 85 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 18790/18720/B carry?
Dynamic load rating Cr = 50.6 kN and static load rating Cor = 67.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 18790/18720/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 18790/18720/B replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 50.8 mm, OD 85 mm and width 17.462 mm match ISO dimensions, 18790/18720/B is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.