Ball Bearing, Angular Contact HY KH 61909 C TA

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HY KH 61909 C TAHY KH 61909 C TA
Part NumberHY KH 61909 C TA
Bearing Size61909

Bearing Dimensions

Bore Diameterd [mm]45
Outer DiameterD [mm]68
Single Bearing WidthB [mm]12
Pitch Circle Diameterdm [mm]56.5
Ball DiameterDw [mm]4.76
OD Inner Ringd1 [mm]52.3
OD Inner Ring - Open Sided2 [mm]50.8
ID Outer RingD1 [mm]60.7
ID Outer Ring - Open SideD2 [mm]62.2
Chamferr1,2 [mm]0.6
Chamfer - Open Sider3,4 [mm]0.3

Bearing Load Ratings

Dynamic Radial Load RatingC [N]7300
Static Radial Load Rating - Steel BallsC0 [N]5150
Static Radial Load Rating - Si3N4 BallsC0 HY [N]3600

Bearing RPM Ratings

Speed Value - Oil Lubricationnoil [1/min]47500
Speed Value - Grease Lubricationngrease [1/min]35625
Bearing SeriesKH
Hybrid (Si3N4 Balls)Yes

Geometrical Data

Number of BallsZ [Qty]28
Contact Angleα0 [°]17
Bearing Weightm [kg]0.128

Mating Part Dimensions

Abutment Diameter Inner Ringda,b min [mm]50.0
Abutment Diameter Outer RingDa,b max [mm]63.5
Chamfer Associated Componentra max [mm]0.6
Chamfer Associated Component - Open Siderb max [mm]0.15

Bearing Preload Data

Light Pre-LoadFv [N]35
Light Axial RigidityCax [N/µm]40
Medium Pre-LoadFv [N]110
Medium Axial RigidityCax [N/µm]61
Heavy Pre-LoadFv [N]220
Heavy Axial RigidityCax [N/µm]81
Minimum Spring Pre-LoadFf [N]265


  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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