7221BWDF Angular Contact Ball Bearing Specifications
Bore d (mm)
105
Outer D (mm)
190
Width B (mm)
72
Dynamic rating Cr (kN)
254
Static rating Cor (kN)
258
Grease limit speed (r/min)
1700
Oil limit speed (r/min)
2400
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 7221BWDF?
RUIST 7221BWDF Angular Contact Ball Bearing: bore d = 105 mm, outer diameter D = 190 mm, width/height B = 72 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 7221BWDF carry?
Dynamic load rating Cr = 254 kN and static load rating Cor = 258 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 7221BWDF 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 7221BWDF replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 105 mm, OD 190 mm and width 72 mm match ISO dimensions, 7221BWDF is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.