71988AC Angular Contact Ball Bearing Specifications
Bore d (mm)
440
Outer D (mm)
600
Width B (mm)
74
Dynamic rating Cr (kN)
495
Static rating Cor (kN)
1050
Grease limit speed (r/min)
740
Oil limit speed (r/min)
1000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 71988AC?
RUIST 71988AC Angular Contact Ball Bearing: bore d = 440 mm, outer diameter D = 600 mm, width/height B = 74 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 71988AC carry?
Dynamic load rating Cr = 495 kN and static load rating Cor = 1050 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 71988AC 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 71988AC replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 440 mm, OD 600 mm and width 74 mm match ISO dimensions, 71988AC is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.