NNU4964K Cylindrical Roller Bearing Specifications
Bore d (mm)
320
Outer D (mm)
440
Width B (mm)
118
Dynamic rating Cr (kN)
1560
Static rating Cor (kN)
3050
Grease limit speed (r/min)
1100
Oil limit speed (r/min)
1400
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST NNU4964K?
RUIST NNU4964K Cylindrical Roller Bearing: bore d = 320 mm, outer diameter D = 440 mm, width/height B = 118 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST NNU4964K carry?
Dynamic load rating Cr = 1560 kN and static load rating Cor = 3050 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST NNU4964K typically used?
Cylindrical Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST NNU4964K replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 320 mm, OD 440 mm and width 118 mm match ISO dimensions, NNU4964K is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.