2878/2820 Tapered Roller Bearing Specifications
Bore d (mm)
34.925
Outer D (mm)
73.025
Width B (mm)
22.225
Dynamic rating Cr (kN)
67.7
Static rating Cor (kN)
83.8
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 2878/2820?
RUIST 2878/2820 Tapered Roller Bearing: bore d = 34.925 mm, outer diameter D = 73.025 mm, width/height B = 22.225 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 2878/2820 carry?
Dynamic load rating Cr = 67.7 kN and static load rating Cor = 83.8 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 2878/2820 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 2878/2820 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 34.925 mm, OD 73.025 mm and width 22.225 mm match ISO dimensions, 2878/2820 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.