51172X Bearing Specifications
Bore d (mm)
360
Outer D (mm)
440
Width B (mm)
65
Dynamic rating Cr (kN)
385
Static rating Cor (kN)
1860
Grease limit speed (r/min)
560
Oil limit speed (r/min)
800
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51172X?
RUIST 51172X Bearing: bore d = 360 mm, outer diameter D = 440 mm, width/height B = 65 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51172X carry?
Dynamic load rating Cr = 385 kN and static load rating Cor = 1860 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51172X typically used?
Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 51172X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 360 mm, OD 440 mm and width 65 mm match ISO dimensions, 51172X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.