R156 Deep Groove Ball Bearing Specifications
Bore d (mm)
4.762
Outer D (mm)
7.938
Width B (mm)
2.779
Dynamic rating Cr (kN)
0.395
Static rating Cor (kN)
0.149
Grease limit speed (r/min)
53000
Oil limit speed (r/min)
63000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST R156?
RUIST R156 Deep Groove Ball Bearing: bore d = 4.762 mm, outer diameter D = 7.938 mm, width/height B = 2.779 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST R156 carry?
Dynamic load rating Cr = 0.395 kN and static load rating Cor = 0.149 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST R156 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 R156 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 4.762 mm, OD 7.938 mm and width 2.779 mm match ISO dimensions, R156 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.