6256 Deep Groove Ball Bearing Specifications
Bore d (mm)
280
Outer D (mm)
500
Width B (mm)
80
Dynamic rating Cr (kN)
440
Static rating Cor (kN)
550
Grease limit speed (r/min)
1000
Oil limit speed (r/min)
1300
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 6256?
RUIST 6256 Deep Groove Ball Bearing: bore d = 280 mm, outer diameter D = 500 mm, width/height B = 80 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 6256 carry?
Dynamic load rating Cr = 440 kN and static load rating Cor = 550 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 6256 typically used?
Deep Groove Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 6256 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 280 mm, OD 500 mm and width 80 mm match ISO dimensions, 6256 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.