81156M Thrust Ball Bearing Specifications
Bore d (mm)
280
Outer D (mm)
350
Width B (mm)
53
Dynamic rating Cr (kN)
680
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE 81156M?
RAYSDE 81156M Thrust Ball Bearing: bore d = 280 mm, outer diameter D = 350 mm, width/height B = 53 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE 81156M carry?
Dynamic load rating Cr = 680 kN and static load rating Cor = — kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE 81156M typically used?
Thrust Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE 81156M replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 280 mm, OD 350 mm and width 53 mm match ISO dimensions, 81156M is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.