665X/653X Tapered Roller Bearing Specifications
Bore d (mm)
85
Outer D (mm)
150
Width B (mm)
41.275
Dynamic rating Cr (kN)
229
Static rating Cor (kN)
335
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 665X/653X?
RUIST 665X/653X Tapered Roller Bearing: bore d = 85 mm, outer diameter D = 150 mm, width/height B = 41.275 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 665X/653X carry?
Dynamic load rating Cr = 229 kN and static load rating Cor = 335 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 665X/653X 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 665X/653X replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 85 mm, OD 150 mm and width 41.275 mm match ISO dimensions, 665X/653X is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.