7964A Angular Contact Ball Bearing Specifications
Bore d (mm)
320
Outer D (mm)
440
Width B (mm)
56
Dynamic rating Cr (kN)
400
Static rating Cor (kN)
525
Grease limit speed (r/min)
1800
Oil limit speed (r/min)
2400
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 7964A?
RUIST 7964A Angular Contact Ball Bearing: bore d = 320 mm, outer diameter D = 440 mm, width/height B = 56 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 7964A carry?
Dynamic load rating Cr = 400 kN and static load rating Cor = 525 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 7964A 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 7964A replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 320 mm, OD 440 mm and width 56 mm match ISO dimensions, 7964A is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.