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KH 61904 C TA Angular Contact Bearing

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Part Number KH 61904 C TA
Series KH
Bearing Type Angular Contact
GMN\'s KH series bearing dimension drawing. Drawing of bearing dimensions with blue lines indicating diameter measurements corresponding to numbers in the data tables.


Bore Diameter d [mm] 20
Outer Diameter D [mm] 37
Width B [mm] 9
Pitch Circle Diameter dm [mm] 28.500
Ball Diameter Dw [mm] 3.970
OD Inner Ring d1 [mm] 25.100
OD Inner Ring - Open Side d2 [mm] 24.500
ID Outer Ring D1 [mm] 31.700
ID Outer Ring - Open Side D2 [mm] 33
Chamfer r1,2 [mm] 0.300
Chamfer - Open Side r3,4 [mm] 0.300


Limiting Speed: Oil Lub. noil [RPM] 75,000
Limiting Speed: Grease Lub. ngrease [RPM] 56,000
Dynamic Radial Load Rating C [N] 3,900
Static Radial Load Rating - Steel Balls C0 [N] 1,900
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 1,340

Geometric Data

Number of Balls Z [qty] 16
Contact Angle a0 [°] 17
Bearing Weight m [kg] 0.036

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.300
Chamfer Associated Component - Open Side rb max [mm] 0.150
Abutment Diameter Inner Ring da min [mm] 23
Abutment Diameter Outer Ring Da max [mm] 33.500

Bearing Preload Data

Light Pre-Load Fv [N] 20
Light Axial Rigidity Cax [N/µm] 21
Medium Pre-Load Fv [N] 60
Medium Axial Rigidity Cax [N/µm] 33
Heavy Pre-Load Fv [N] 120
Heavy Axial Rigidity Cax [N/µm] 44
Minimum Spring Pre-Load Ff [N] 140
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