71903E Angular Contact Ball Bearing Specifications
Bore d (mm)
17
Outer D (mm)
30
Width B (mm)
7
Dynamic rating Cr (kN)
5250
Static rating Cor (kN)
2900
Grease limit speed (r/min)
45000
Oil limit speed (r/min)
67500
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE 71903E?
RAYSDE 71903E Angular Contact Ball Bearing: bore d = 17 mm, outer diameter D = 30 mm, width/height B = 7 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
What load ratings does RAYSDE 71903E carry?
Dynamic load rating Cr = 5250 kN and static load rating Cor = 2900 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE 71903E typically used?
Angular Contact Ball Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Can RAYSDE 71903E replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 17 mm, OD 30 mm and width 7 mm match ISO dimensions, 71903E is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.