23121CK Spherical Roller Bearing Specifications
Bore d (mm)
105
Outer D (mm)
175
Width B (mm)
56
Dynamic rating Cr (kN)
365
Static rating Cor (kN)
560
Grease limit speed (r/min)
1900
Oil limit speed (r/min)
2700
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 23121CK?
RUIST 23121CK Spherical Roller Bearing: bore d = 105 mm, outer diameter D = 175 mm, width/height B = 56 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 23121CK carry?
Dynamic load rating Cr = 365 kN and static load rating Cor = 560 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 23121CK typically used?
Spherical Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 23121CK replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 105 mm, OD 175 mm and width 56 mm match ISO dimensions, 23121CK is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.