7321B Angular Contact Ball Bearing Specifications
Bore d (mm)
105
Outer D (mm)
225
Width B (mm)
49
Dynamic rating Cr (kN)
210
Static rating Cor (kN)
177
Grease limit speed (r/min)
2400
Oil limit speed (r/min)
3200
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 7321B?
RUIST 7321B Angular Contact Ball Bearing: bore d = 105 mm, outer diameter D = 225 mm, width/height B = 49 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 7321B carry?
Dynamic load rating Cr = 210 kN and static load rating Cor = 177 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 7321B 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 7321B replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 105 mm, OD 225 mm and width 49 mm match ISO dimensions, 7321B is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.