53209 Bearing Specifications
Bore d (mm)
45
Outer D (mm)
73
Width B (mm)
21.3
Dynamic rating Cr (kN)
48
Static rating Cor (kN)
105
Grease limit speed (r/min)
2600
Oil limit speed (r/min)
4000
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 53209?
RUIST 53209 Bearing: bore d = 45 mm, outer diameter D = 73 mm, width/height B = 21.3 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 53209 carry?
Dynamic load rating Cr = 48 kN and static load rating Cor = 105 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 53209 typically used?
Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 53209 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 45 mm, OD 73 mm and width 21.3 mm match ISO dimensions, 53209 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.