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KH 61912 C TA Angular Contact Bearing

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Part Number KH 61912 C TA
Series KH
Bearing Type Angular Contact


Bore Diameter d [mm] 60
Outer Diameter D [mm] 85
Width B [mm] 13
Pitch Circle Diameter dm [mm] 72.50
Ball Diameter Dw [mm] 5.56
OD Inner Ring d1 [mm] 68.10
OD Inner Ring - Open Side d2 [mm] 66.80
ID Outer Ring D1 [mm] 77.90
ID Outer Ring - Open Side D2 [mm] 79.50
Chamfer r1,2 [mm] 1
Chamfer - Open Side r3,4 [mm] 0.30


Limiting Speed: Oil Lub. noil [RPM] 29,500
Limiting Speed: Grease Lub. ngrease [RPM] 22,000
Dynamic Radial Load Rating C [N] 10,300
Static Radial Load Rating - Steel Balls C0 [N] 8,100
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 5,650

Geometric Data

Number of Balls Z [qty] 32
Contact Angle a0 [°] 17
Bearing Weight m [kg] 0.20

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.60
Chamfer Associated Component - Open Side rb max [mm] 0.30
Abutment Diameter Inner Ring da min [mm] 65
Abutment Diameter Outer Ring Da max [mm] 80

Bearing Preload Data

Light Pre-Load Fv [N] 50
Light Axial Rigidity Cax [N/µm] 52
Medium Pre-Load Fv [N] 160
Medium Axial Rigidity Cax [N/µm] 80
Heavy Pre-Load Fv [N] 310
Heavy Axial Rigidity Cax [N/µm] 104
Minimum Spring Pre-Load Ff [N] 370
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