NA4917 Needle Roller Bearing Specifications
Bore d (mm)
85
Outer D (mm)
120
Width B (mm)
35
Dynamic rating Cr (kN)
125
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 NA4917?
RAYSDE NA4917 Needle Roller Bearing: bore d = 85 mm, outer diameter D = 120 mm, width/height B = 35 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE NA4917 carry?
Dynamic load rating Cr = 125 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 NA4917 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 NA4917 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 85 mm, OD 120 mm and width 35 mm match ISO dimensions, NA4917 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.