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S 61912 C TA Angular Contact Bearing

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Part Number S 61912 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] 60
Outer Diameter D [mm] 85
Width B [mm] 13
Pitch Circle Diameter dm [mm] 72.500
Ball Diameter Dw [mm] 7.140
OD Inner Ring d1 [mm] 68.100
ID Outer Ring D1 [mm] 76.900
ID Outer Ring - Open Side D2 [mm] 79.500
Chamfer r1,2 [mm] 1
Chamfer - Open Side r3,4 [mm] 0.300


Limiting Speed: Oil Lub. noil [RPM] 23,500
Limiting Speed: Grease Lub. ngrease [RPM] 17,500
Dynamic Radial Load Rating C [N] 19,200
Static Radial Load Rating - Steel Balls C0 [N] 19,000
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 13,300

Geometric Data

Number of Balls Z [qty] 23
Contact Angle a0 [°] 15
Bearing Weight m [kg] 0.195

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.600
Chamfer Associated Component - Open Side rb max [mm] 0.300
Abutment Diameter Inner Ring da min [mm] 65
Abutment Diameter Outer Ring Da max [mm] 80

Bearing Preload Data

Light Pre-Load Fv [N] 100
Light Axial Rigidity Cax [N/µm] 58
Medium Pre-Load Fv [N] 300
Medium Axial Rigidity Cax [N/µm] 94
Heavy Pre-Load Fv [N] 600
Heavy Axial Rigidity Cax [N/µm] 132
Minimum Spring Pre-Load Ff [N] 490
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