Ball Bearing, Angular Contact KH 61912 C TA

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KH 61912 C TAKH 61912 C TA
Part NumberKH 61912 C TA
Bearing Size61912

Bearing Dimensions

Bore Diameterd [mm]60
Outer DiameterD [mm]85
Single Bearing WidthB [mm]13
Pitch Circle Diameterdm [mm]72.5
Ball DiameterDw [mm]5.56
OD Inner Ringd1 [mm]68.1
OD Inner Ring - Open Sided2 [mm]66.8
ID Outer RingD1 [mm]77.9
ID Outer Ring - Open SideD2 [mm]79.5
Chamferr1,2 [mm]1.0
Chamfer - Open Sider3,4 [mm]0.3

Bearing Load Ratings

Dynamic Radial Load RatingC [N]10300
Static Radial Load Rating - Steel BallsC0 [N]8100
Static Radial Load Rating - Si3N4 BallsC0 HY [N]5650

Bearing RPM Ratings

Speed Value - Oil Lubricationnoil [1/min]29500
Speed Value - Grease Lubricationngrease [1/min]22000
Bearing SeriesKH
Hybrid (Si3N4 Balls)No

Geometrical Data

Number of BallsZ [Qty]32
Contact Angleα0 [°]17
Bearing Weightm [kg]0.195

Mating Part Dimensions

Abutment Diameter Inner Ringda,b min [mm]65.0
Abutment Diameter Outer RingDa,b max [mm]80.0
Chamfer Associated Componentra max [mm]0.6
Chamfer Associated Component - Open Siderb max [mm]0.30

Bearing Preload Data

Light Pre-LoadFv [N]50
Light Axial RigidityCax [N/µm]52
Medium Pre-LoadFv [N]160
Medium Axial RigidityCax [N/µm]80
Heavy Pre-LoadFv [N]310
Heavy Axial RigidityCax [N/µm]104
Minimum Spring Pre-LoadFf [N]370

Notes:

  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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