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KH 61909 C TA Angular Contact Bearing

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Part Number KH 61909 C TA
Series KH
Bearing Type Angular Contact


Bore Diameter d [mm] 45
Outer Diameter D [mm] 68
Width B [mm] 12
Pitch Circle Diameter dm [mm] 56.50
Ball Diameter Dw [mm] 4.76
OD Inner Ring d1 [mm] 52.30
OD Inner Ring - Open Side d2 [mm] 50.80
ID Outer Ring D1 [mm] 60.70
ID Outer Ring - Open Side D2 [mm] 62.20
Chamfer r1,2 [mm] 0.60
Chamfer - Open Side r3,4 [mm] 0.30


Limiting Speed: Oil Lub. noil [RPM] 38,000
Limiting Speed: Grease Lub. ngrease [RPM] 28,500
Dynamic Radial Load Rating C [N] 7,300
Static Radial Load Rating - Steel Balls C0 [N] 5,150
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 3,600

Geometric Data

Number of Balls Z [qty] 28
Contact Angle a0 [°] 17
Bearing Weight m [kg] 0.13

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.60
Chamfer Associated Component - Open Side rb max [mm] 0.15
Abutment Diameter Inner Ring da min [mm] 50
Abutment Diameter Outer Ring Da max [mm] 63.50

Bearing Preload Data

Light Pre-Load Fv [N] 35
Light Axial Rigidity Cax [N/µm] 40
Medium Pre-Load Fv [N] 110
Medium Axial Rigidity Cax [N/µm] 61
Heavy Pre-Load Fv [N] 220
Heavy Axial Rigidity Cax [N/µm] 81
Minimum Spring Pre-Load Ff [N] 265
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