7311AW Angular Contact Ball Bearing Specifications
Bore d (mm)
55
Outer D (mm)
120
Width B (mm)
29
Dynamic rating Cr (kN)
94.5
Static rating Cor (kN)
61.5
Grease limit speed (r/min)
4000
Oil limit speed (r/min)
5600
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 7311AW?
RUIST 7311AW Angular Contact Ball Bearing: bore d = 55 mm, outer diameter D = 120 mm, width/height B = 29 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 7311AW carry?
Dynamic load rating Cr = 94.5 kN and static load rating Cor = 61.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 7311AW 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 7311AW replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 55 mm, OD 120 mm and width 29 mm match ISO dimensions, 7311AW is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.