51240J Thrust Ball Bearing Specifications
Bore d (mm)
200
Outer D (mm)
280
Width B (mm)
62
Dynamic rating Cr (kN)
350
Static rating Cor (kN)
1290
Grease limit speed (r/min)
750
Oil limit speed (r/min)
980
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51240J?
RUIST 51240J Thrust Ball Bearing: bore d = 200 mm, outer diameter D = 280 mm, width/height B = 62 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51240J carry?
Dynamic load rating Cr = 350 kN and static load rating Cor = 1290 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51240J typically used?
Thrust Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 51240J replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 200 mm, OD 280 mm and width 62 mm match ISO dimensions, 51240J is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.