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S 61909 C TA Angular Contact Bearing

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Part Number S 61909 C TA
Series S
Bearing Type Angular Contact
GMN's S series angular contact bearing dimension drawing. Drawing of bearing dimensions with blue lines indicating diameter measurements corresponding to numbers in the data tables.


Bore Diameter d [mm] 45
Outer Diameter D [mm] 68
Width B [mm] 12
Pitch Circle Diameter dm [mm] 56.500
Ball Diameter Dw [mm] 6.350
OD Inner Ring d1 [mm] 52.300
ID Outer Ring D1 [mm] 60.700
ID Outer Ring - Open Side D2 [mm] 62.700
Chamfer r1,2 [mm] 0.600
Chamfer - Open Side r3,4 [mm] 0.300


Limiting Speed: Oil Lub. noil [RPM] 30,000
Limiting Speed: Grease Lub. ngrease [RPM] 22,500
Dynamic Radial Load Rating C [N] 15,200
Static Radial Load Rating - Steel Balls C0 [N] 13,600
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 9,600

Geometric Data

Number of Balls Z [qty] 20
Contact Angle a0 [°] 15
Bearing Weight m [kg] 0.128

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.600
Chamfer Associated Component - Open Side rb max [mm] 0.150
Abutment Diameter Inner Ring da min [mm] 50
Abutment Diameter Outer Ring Da max [mm] 63.500

Bearing Preload Data

Light Pre-Load Fv [N] 80
Light Axial Rigidity Cax [N/µm] 49
Medium Pre-Load Fv [N] 230
Medium Axial Rigidity Cax [N/µm] 79
Heavy Pre-Load Fv [N] 460
Heavy Axial Rigidity Cax [N/µm] 112
Minimum Spring Pre-Load Ff [N] 390
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