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SM 61909 C TA Steel Angular Contact Bearing

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Part Number SM 61909 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] 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 of Contact Surface D1Z [mm] 63.200
ID Outer Ring (Open Side) D2 [mm] 62.900
ID Outer Ring (Open Side) of Contact Surface D2Z [mm] 64
Chamfer rs [mm] 0.600
Chamfer (Open Side) r1s [mm] 0.300

Ratings

Limiting Speed: Oil Lub. noil [RPM] 35,000
Limiting Speed: Grease Lub. ngrease [RPM] 26,500
Dynamic Radial Load Rating Cr [N] 10,600
Static Radial Load Rating - Steel Balls C0r [N] 6,850
Fatigue Load Limit Cur [N] 357

Geometric Data

Number of Balls Z [qty] 20
Contact Angle a0 [°] 17
Bearing Weight m [kg] 0.125

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,b min [mm] 48.800
Abutment Diameter Outer Ring Da max [mm] 64.700
Abutment Diameter Outer Ring Db max [mm] 65.500
Oil Nozzle Position dT [mm] 54.500

Bearing Preload Data

Light Pre-Load Fv L [N] 55
Light Axial Rigidity Cax L [N/µm] 42
Medium Pre-Load Fv M [N] 160
Medium Axial Rigidity Cax M [N/µm] 63
Heavy Pre-Load Fv S [N] 320
Heavy Axial Rigidity Cax S [N/µm] 84
Minimum Spring Pre-Load Ff [N] 440
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