28158/28300X Tapered Roller Bearing Specifications
Bore d (mm)
40
Outer D (mm)
76.2
Width B (mm)
20.625
Dynamic rating Cr (kN)
58.8
Static rating Cor (kN)
68.9
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 28158/28300X?
RUIST 28158/28300X Tapered Roller Bearing: bore d = 40 mm, outer diameter D = 76.2 mm, width/height B = 20.625 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 28158/28300X carry?
Dynamic load rating Cr = 58.8 kN and static load rating Cor = 68.9 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 28158/28300X 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 28158/28300X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 40 mm, OD 76.2 mm and width 20.625 mm match ISO dimensions, 28158/28300X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.