51428X Bearing Specifications
Bore d (mm)
140
Outer D (mm)
280
Width B (mm)
112
Dynamic rating Cr (kN)
550
Static rating Cor (kN)
1750
Grease limit speed (r/min)
530
Oil limit speed (r/min)
800
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51428X?
RUIST 51428X Bearing: bore d = 140 mm, outer diameter D = 280 mm, width/height B = 112 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51428X carry?
Dynamic load rating Cr = 550 kN and static load rating Cor = 1750 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51428X typically used?
Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 51428X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 140 mm, OD 280 mm and width 112 mm match ISO dimensions, 51428X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.