3784/3720 Tapered Roller Bearing Specifications
Bore d (mm)
50.8
Outer D (mm)
93.264
Width B (mm)
30.162
Dynamic rating Cr (kN)
113
Static rating Cor (kN)
153
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RUIST 3784/3720?
RUIST 3784/3720 Tapered Roller Bearing: bore d = 50.8 mm, outer diameter D = 93.264 mm, width/height B = 30.162 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RUIST 3784/3720 carry?
Dynamic load rating Cr = 113 kN and static load rating Cor = 153 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RUIST 3784/3720 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 3784/3720 replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 50.8 mm, OD 93.264 mm and width 30.162 mm match ISO dimensions, 3784/3720 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.