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HY SM 61920 C TA Angular Contact Bearing

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Part Number HY SM 61920 C TA
Series SM
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] 100
Outer Diameter D [mm] 140
Width B [mm] 20
Pitch Circle Diameter dm [mm] 120
Ball Diameter Dw [mm] 11.910
OD Inner Ring d1 [mm] 112.800
ID Outer Ring D1 [mm] 127.200
ID Outer Ring - Open Side D2 [mm] 132
Chamfer r1,2 [mm] 0.600
Chamfer - Open Side r3,4 [mm] 0.600


Limiting Speed: Oil Lub. noil [RPM] 20,625
Limiting Speed: Grease Lub. ngrease [RPM] 15,625
Dynamic Radial Load Rating C [N] 37,500
Static Radial Load Rating - Steel Balls C0 [N] 31,000
Static Radial Load Rating - Si3N4 Balls C0 HY [N] 21,700

Geometric Data

Number of Balls Z [qty] 25
Contact Angle a0 [°] 19
Bearing Weight m [kg] 0.800

Mating Part Dimensions

Chamfer Associated Component ra max [mm] 0.600
Chamfer Associated Component - Open Side rb max [mm] 0.600
Abutment Diameter Inner Ring da min [mm] 107
Abutment Diameter Outer Ring Da max [mm] 133

Bearing Preload Data

Light Pre-Load Fv [N] 190
Light Axial Rigidity Cax [N/µm] 107
Medium Pre-Load Fv [N] 570
Medium Axial Rigidity Cax [N/µm] 160
Heavy Pre-Load Fv [N] 1,150
Heavy Axial Rigidity Cax [N/µm] 211
Minimum Spring Pre-Load Ff [N] 1,430
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