BT1B639405Q Tapered Roller Bearing Specifications
Bore d (mm)
28
Outer D (mm)
68
Width B (mm)
50
Dynamic rating Cr (kN)
42.9
Static rating Cor (kN)
—
Grease limit speed (r/min)
—
Oil limit speed (r/min)
—
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE BT1B639405Q?
RAYSDE BT1B639405Q Tapered Roller Bearing: bore d = 28 mm, outer diameter D = 68 mm, width/height B = 50 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE BT1B639405Q carry?
Dynamic load rating Cr = 42.9 kN and static load rating Cor = — kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE BT1B639405Q typically used?
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE BT1B639405Q replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 28 mm, OD 68 mm and width 50 mm match ISO dimensions, BT1B639405Q is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.