6909NR Deep Groove Ball Bearing Specifications
Bore d (mm)
45
Outer D (mm)
68
Width B (mm)
12
Dynamic rating Cr (kN)
15.5
Static rating Cor (kN)
10.9
Grease limit speed (r/min)
9500
Oil limit speed (r/min)
12000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 6909NR?
RUIST 6909NR Deep Groove Ball Bearing: bore d = 45 mm, outer diameter D = 68 mm, width/height B = 12 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 6909NR carry?
Dynamic load rating Cr = 15.5 kN and static load rating Cor = 10.9 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 6909NR typically used?
Deep Groove Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 6909NR replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 45 mm, OD 68 mm and width 12 mm match ISO dimensions, 6909NR is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.