R1/4ZZ Deep Groove Ball Bearing Specifications
Bore d (mm)
1.984
Outer D (mm)
6.35
Width B (mm)
3.571
Dynamic rating Cr (kN)
0.34
Static rating Cor (kN)
0.108
Grease limit speed (r/min)
67000
Oil limit speed (r/min)
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Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST R1/4ZZ?
RUIST R1/4ZZ Deep Groove Ball Bearing: bore d = 1.984 mm, outer diameter D = 6.35 mm, width/height B = 3.571 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST R1/4ZZ carry?
Dynamic load rating Cr = 0.34 kN and static load rating Cor = 0.108 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST R1/4ZZ 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 R1/4ZZ replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 1.984 mm, OD 6.35 mm and width 3.571 mm match ISO dimensions, R1/4ZZ is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.