K55X63X25 Needle Roller Bearing Specifications
Bore d (mm)
55
Outer D (mm)
63
Width B (mm)
25
Dynamic rating Cr (kN)
50
Static rating Cor (kN)
100
Grease limit speed (r/min)
4700
Oil limit speed (r/min)
8300
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST K55X63X25?
RUIST K55X63X25 Needle Roller Bearing: bore d = 55 mm, outer diameter D = 63 mm, width/height B = 25 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST K55X63X25 carry?
Dynamic load rating Cr = 50 kN and static load rating Cor = 100 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST K55X63X25 typically used?
Needle Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST K55X63X25 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 55 mm, OD 63 mm and width 25 mm match ISO dimensions, K55X63X25 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.