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SM 61920 C TA Steel Angular Contact Bearing

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Part Number SM 61920 C TA
Series SM
Bearing Type Angular Contact
Ball Material Steel
Ring Material 100 Cr 6 (SAE 52100)
GMN's S series angular contact bearing dimension drawing. GMN Bearing USA GMN Bearing USA

Dimensions

Bore Diameter d [mm] 100
Outer Diameter D [mm] 140
Width B [mm] 20
Pitch Circle Diameter dm [mm] 120
Ball Diameter Dw [mm] 11.906
OD Inner Ring d1 [mm] 112.800
ID Outer Ring D1 [mm] 127.200
ID Outer Ring (Open Side) D2 [mm] 132.100
Chamfer rs [mm] 0.600
Chamfer (Open Side) r1s [mm] 0.600

Ratings

Limiting Speed: Oil Lub. noil [RPM] 16,500
Limiting Speed: Grease Lub. ngrease [RPM] 12,500
Dynamic Radial Load Rating Cr [N] 37,500
Static Radial Load Rating - Steel Balls C0r [N] 31,500
Fatigue Load Limit Cur [N] 1,480

Geometric Data

Number of Balls Z [qty] 25
Contact Angle a0 [°] 19
Bearing Weight m [kg] 0.790

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,b min [mm] 105.700
Abutment Diameter Outer Ring Da max [mm] 135.200
Abutment Diameter Outer Ring Db max [mm] 135.200
Oil Nozzle Position dT [mm] 116.500

Bearing Preload Data

Light Pre-Load Fv L [N] 190
Light Axial Rigidity Cax L [N/µm] 106
Medium Pre-Load Fv M [N] 570
Medium Axial Rigidity Cax M [N/µm] 159
Heavy Pre-Load Fv S [N] 1,150
Heavy Axial Rigidity Cax S [N/µm] 210
Minimum Spring Pre-Load Ff [N] 2,070
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