R155ZZS Deep Groove Ball Bearing Specifications
Bore d (mm)
3.967
Outer D (mm)
7.938
Width B (mm)
3.175
Dynamic rating Cr (kN)
0.395
Static rating Cor (kN)
0.149
Grease limit speed (r/min)
53000
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST R155ZZS?
RUIST R155ZZS Deep Groove Ball Bearing: bore d = 3.967 mm, outer diameter D = 7.938 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 R155ZZS 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 R155ZZS 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 R155ZZS replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 3.967 mm, OD 7.938 mm and width 3.175 mm match ISO dimensions, R155ZZS is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.