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S 61908 C TA Angular Contact Bearing

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Part Number S 61908 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] 40
Outer Diameter D [mm] 62
Width B [mm] 12
Pitch Circle Diameter dm [mm] 51
Ball Diameter Dw [mm] 6.350
OD Inner Ring d1 [mm] 46.800
ID Outer Ring D1 [mm] 55.200
ID Outer Ring - Open Side D2 [mm] 57.200
Chamfer r1,2 [mm] 0.600
Chamfer - Open Side r3,4 [mm] 0.300


Limiting Speed: Oil Lub. noil [RPM] 33,000
Limiting Speed: Grease Lub. ngrease [RPM] 24,500
Dynamic Radial Load Rating C [N] 14,900
Static Radial Load Rating - Steel Balls C0 [N] 12,700
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 9,000

Geometric Data

Number of Balls Z [qty] 19
Contact Angle a0 [°] 15
Bearing Weight m [kg] 0.109

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] 45
Abutment Diameter Outer Ring Da max [mm] 57.500

Bearing Preload Data

Light Pre-Load Fv [N] 75
Light Axial Rigidity Cax [N/µm] 46
Medium Pre-Load Fv [N] 230
Medium Axial Rigidity Cax [N/µm] 77
Heavy Pre-Load Fv [N] 460
Heavy Axial Rigidity Cax [N/µm] 109
Minimum Spring Pre-Load Ff [N] 380
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