74550A/74850 Tapered Roller Bearing Specifications
Bore d (mm)
139.7
Outer D (mm)
215.9
Width B (mm)
47.625
Dynamic rating Cr (kN)
354
Static rating Cor (kN)
614
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 74550A/74850?
RUIST 74550A/74850 Tapered Roller Bearing: bore d = 139.7 mm, outer diameter D = 215.9 mm, width/height B = 47.625 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 74550A/74850 carry?
Dynamic load rating Cr = 354 kN and static load rating Cor = 614 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 74550A/74850 typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RUIST 74550A/74850 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 139.7 mm, OD 215.9 mm and width 47.625 mm match ISO dimensions, 74550A/74850 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.