NA6911 Needle Roller Bearing Specifications
Bore d (mm)
55
Outer D (mm)
80
Width B (mm)
45
Dynamic rating Cr (kN)
104
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 NA6911?
RAYSDE NA6911 Needle Roller Bearing: bore d = 55 mm, outer diameter D = 80 mm, width/height B = 45 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE NA6911 carry?
Dynamic load rating Cr = 104 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 NA6911 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 NA6911 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 55 mm, OD 80 mm and width 45 mm match ISO dimensions, NA6911 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.