51220M Thrust Ball Bearing Specifications
Bore d (mm)
100
Outer D (mm)
150
Width B (mm)
38
Dynamic rating Cr (kN)
125
Static rating Cor (kN)
350
Grease limit speed (r/min)
1300
Oil limit speed (r/min)
1800
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51220M?
RUIST 51220M Thrust Ball Bearing: bore d = 100 mm, outer diameter D = 150 mm, width/height B = 38 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51220M carry?
Dynamic load rating Cr = 125 kN and static load rating Cor = 350 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51220M 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 51220M replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 100 mm, OD 150 mm and width 38 mm match ISO dimensions, 51220M is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.