1987/1931 Tapered Roller Bearing Specifications
Bore d (mm)
26.975
Outer D (mm)
60.325
Width B (mm)
19.355
Dynamic rating Cr (kN)
44.8
Static rating Cor (kN)
50.2
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 1987/1931?
RUIST 1987/1931 Tapered Roller Bearing: bore d = 26.975 mm, outer diameter D = 60.325 mm, width/height B = 19.355 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 1987/1931 carry?
Dynamic load rating Cr = 44.8 kN and static load rating Cor = 50.2 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 1987/1931 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 1987/1931 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 26.975 mm, OD 60.325 mm and width 19.355 mm match ISO dimensions, 1987/1931 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.