R166 Deep Groove Ball Bearing Specifications
Bore d (mm)
4.762
Outer D (mm)
9.525
Width B (mm)
3.175
Dynamic rating Cr (kN)
0.78
Static rating Cor (kN)
0.27
Grease limit speed (r/min)
50000
Oil limit speed (r/min)
60000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST R166?
RUIST R166 Deep Groove Ball Bearing: bore d = 4.762 mm, outer diameter D = 9.525 mm, width/height B = 3.175 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST R166 carry?
Dynamic load rating Cr = 0.78 kN and static load rating Cor = 0.27 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST R166 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 R166 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 4.762 mm, OD 9.525 mm and width 3.175 mm match ISO dimensions, R166 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.