R2A Deep Groove Ball Bearing Specifications
Bore d (mm)
3.175
Outer D (mm)
12.7
Width B (mm)
4.366
Dynamic rating Cr (kN)
0.705
Static rating Cor (kN)
0.225
Grease limit speed (r/min)
53000
Oil limit speed (r/min)
63000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST R2A?
RUIST R2A Deep Groove Ball Bearing: bore d = 3.175 mm, outer diameter D = 12.7 mm, width/height B = 4.366 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST R2A carry?
Dynamic load rating Cr = 0.705 kN and static load rating Cor = 0.225 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST R2A 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 R2A replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 3.175 mm, OD 12.7 mm and width 4.366 mm match ISO dimensions, R2A is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.