Ball Bearing, Angular Contact HY SM 61921 C TA | GMN Bearing USA

Ball Bearing, Angular Contact HY SM 61921 C TA

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HY SM 61921 C TAHY SM 61921 C TA
Part NumberHY SM 61921 C TA
Bearing Size61921

Bearing Dimensions

Bore Diameterd [mm]105
Outer DiameterD [mm]145
Single Bearing WidthB [mm]20
Pitch Circle Diameterdm [mm]125.0
Ball DiameterDw [mm]11.91
OD Inner Ringd1 [mm]117.8
ID Outer RingD1 [mm]132.2
ID Outer Ring - Open SideD2 [mm]137.0
Chamferr1,2 [mm]0.6
Chamfer - Open Sider3,4 [mm]0.6

Bearing Load Ratings

Dynamic Radial Load RatingC [N]38500
Static Radial Load Rating - Steel BallsC0 [N]32500
Static Radial Load Rating - Si3N4 BallsC0 HY [N]22700

Bearing RPM Ratings

Speed Value - Oil Lubricationnoil [1/min]20000
Speed Value - Grease Lubricationngrease [1/min]15000
Bearing SeriesSM
Hybrid (Si3N4 Balls)Yes

Geometrical Data

Number of BallsZ [Qty]26
Contact Angleα0 [°]19
Bearing Weightm [kg]0.830

Mating Part Dimensions

Abutment Diameter Inner Ringda,b min [mm]112.0
Abutment Diameter Outer RingDa,b max [mm]138.0
Chamfer Associated Componentra max [mm]0.6
Chamfer Associated Component - Open Siderb max [mm]0.60

Bearing Preload Data

Light Pre-LoadFv [N]200
Light Axial RigidityCax [N/µm]112
Medium Pre-LoadFv [N]590
Medium Axial RigidityCax [N/µm]166
Heavy Pre-LoadFv [N]1170
Heavy Axial RigidityCax [N/µm]218
Minimum Spring Pre-LoadFf [N]1470


  1. Position of the oiling Nozzle (dT) for bearings with TA cage/ TXM cage upon request
  2. The stated load and speed values are given for a spring preloaded single bearing with oil/air or oil mist lubrication. If specific applications differ, please consult correction factors and/or GMN USA engineers.

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