NKX12Z Needle Roller Bearing Specifications
Bore d (mm)
12
Outer D (mm)
21
Width B (mm)
23
Dynamic rating Cr (kN)
—
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE NKX12Z?
RAYSDE NKX12Z Needle Roller Bearing: bore d = 12 mm, outer diameter D = 21 mm, width/height B = 23 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE NKX12Z carry?
Dynamic load rating Cr = — kN and static load rating Cor = — kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE NKX12Z typically used?
Needle Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE NKX12Z replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 12 mm, OD 21 mm and width 23 mm match ISO dimensions, NKX12Z is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.