17887/17831 Tapered Roller Bearing Specifications
Bore d (mm)
45.23
Outer D (mm)
79.985
Width B (mm)
19.842
Dynamic rating Cr (kN)
63.8
Static rating Cor (kN)
83.3
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 17887/17831?
RUIST 17887/17831 Tapered Roller Bearing: bore d = 45.23 mm, outer diameter D = 79.985 mm, width/height B = 19.842 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 17887/17831 carry?
Dynamic load rating Cr = 63.8 kN and static load rating Cor = 83.3 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 17887/17831 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 17887/17831 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 45.23 mm, OD 79.985 mm and width 19.842 mm match ISO dimensions, 17887/17831 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.