Ball Bearing, Angular Contact HY SM 61903 C TA | GMN Bearing USA

Ball Bearing, Angular Contact HY SM 61903 C TA

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HY SM 61903 C TAHY SM 61903 C TA
Part NumberHY SM 61903 C TA
Bearing Size61903

Bearing Dimensions

Bore Diameterd [mm]17
Outer DiameterD [mm]30
Single Bearing WidthB [mm]7
Pitch Circle Diameterdm [mm]23.5
Ball DiameterDw [mm]3.97
OD Inner Ringd1 [mm]21.0
ID Outer RingD1 [mm]26.6
ID Outer Ring - Open SideD2 [mm]27.7
Chamferr1,2 [mm]0.3
Chamfer - Open Sider3,4 [mm]0.3

Bearing Load Ratings

Dynamic Radial Load RatingC [N]3750
Static Radial Load Rating - Steel BallsC0 [N]1750
Static Radial Load Rating - Si3N4 BallsC0 HY [N]1230

Bearing RPM Ratings

Speed Value - Oil Lubricationnoil [1/min]105000
Speed Value - Grease Lubricationngrease [1/min]78750
Bearing SeriesSM
Hybrid (Si3N4 Balls)Yes

Geometrical Data

Number of BallsZ [Qty]14
Contact Angleα0 [°]15
Bearing Weightm [kg]0.017

Mating Part Dimensions

Abutment Diameter Inner Ringda,b min [mm]19.5
Abutment Diameter Outer RingDa,b max [mm]27.5
Chamfer Associated Componentra max [mm]0.3
Chamfer Associated Component - Open Siderb max [mm]0.10

Bearing Preload Data

Light Pre-LoadFv [N]19
Light Axial RigidityCax [N/µm]16
Medium Pre-LoadFv [N]55
Medium Axial RigidityCax [N/µm]25
Heavy Pre-LoadFv [N]110
Heavy Axial RigidityCax [N/µm]34
Minimum Spring Pre-LoadFf [N]115


  1. Position of the oiling Nozzle (dT) for bearings with TA cage/ TXM cage upon request
  2. The stated load and speed values are given for a spring preloaded single bearing with oil/air or oil mist lubrication. If specific applications differ, please consult correction factors and/or GMN USA engineers.

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