51208 Bearing Specifications
Bore d (mm)
40
Outer D (mm)
68
Width B (mm)
19
Dynamic rating Cr (kN)
47.5
Static rating Cor (kN)
98.5
Grease limit speed (r/min)
2800
Oil limit speed (r/min)
4300
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 51208?
RUIST 51208 Bearing: bore d = 40 mm, outer diameter D = 68 mm, width/height B = 19 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 51208 carry?
Dynamic load rating Cr = 47.5 kN and static load rating Cor = 98.5 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 51208 typically used?
Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 51208 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 40 mm, OD 68 mm and width 19 mm match ISO dimensions, 51208 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.