67790D/67720 Tapered Roller Bearing Specifications
Bore d (mm)
77.8
Outer D (mm)
247.65
Width B (mm)
90.488
Dynamic rating Cr (kN)
653
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 67790D/67720?
RUIST 67790D/67720 Tapered Roller Bearing: bore d = 77.8 mm, outer diameter D = 247.65 mm, width/height B = 90.488 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 67790D/67720 carry?
Dynamic load rating Cr = 653 kN and static load rating Cor = — kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 67790D/67720 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 67790D/67720 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 77.8 mm, OD 247.65 mm and width 90.488 mm match ISO dimensions, 67790D/67720 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.