7918A5 Angular Contact Ball Bearing Specifications
Bore d (mm)
90
Outer D (mm)
125
Width B (mm)
18
Dynamic rating Cr (kN)
49.5
Static rating Cor (kN)
43.5
Grease limit speed (r/min)
9400
Oil limit speed (r/min)
14000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 7918A5?
RUIST 7918A5 Angular Contact Ball Bearing: bore d = 90 mm, outer diameter D = 125 mm, width/height B = 18 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 7918A5 carry?
Dynamic load rating Cr = 49.5 kN and static load rating Cor = 43.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 7918A5 typically used?
Angular Contact Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 7918A5 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 90 mm, OD 125 mm and width 18 mm match ISO dimensions, 7918A5 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.