6808 Deep Groove Ball Bearing Specifications
Bore d (mm)
40
Outer D (mm)
52
Width B (mm)
7
Dynamic rating Cr (kN)
7.3
Static rating Cor (kN)
4.4
Grease limit speed (r/min)
12728
Oil limit speed (r/min)
15910
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 6808?
RUIST 6808 Deep Groove Ball Bearing: bore d = 40 mm, outer diameter D = 52 mm, width/height B = 7 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 6808 carry?
Dynamic load rating Cr = 7.3 kN and static load rating Cor = 4.4 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 6808 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 6808 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 40 mm, OD 52 mm and width 7 mm match ISO dimensions, 6808 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.