HM71903C Angular Contact Ball Bearing Specifications
Bore d (mm)
17
Outer D (mm)
30
Width B (mm)
7
Dynamic rating Cr (kN)
3200
Static rating Cor (kN)
1700
Grease limit speed (r/min)
65700
Oil limit speed (r/min)
99700
Frequently Asked Questions / FAQ
What are the exact dimensions of RAYSDE HM71903C?
RAYSDE HM71903C 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 HM71903C carry?
Dynamic load rating Cr = 3200 kN and static load rating Cor = 1700 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Where is RAYSDE HM71903C 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 HM71903C replace a SKF, FAG, NSK or TIMKEN unit?
Yes. Because bore 17 mm, OD 30 mm and width 7 mm match ISO dimensions, HM71903C is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.