Ball Bearing, Angular Contact HY S 61904 E TA
Part Number | HY S 61904 E TA |
Bearing Size | 61904 |
Bearing Dimensions
Bore Diameter | d [mm] | 20 |
Outer Diameter | D [mm] | 37 |
Single Bearing Width | B [mm] | 9 |
Pitch Circle Diameter | dm [mm] | 28.5 |
Ball Diameter | Dw [mm] | 4.76 |
OD Inner Ring | d1 [mm] | 25.1 |
ID Outer Ring | D1 [mm] | 31.9 |
ID Outer Ring - Open Side | D2 [mm] | 33.2 |
Chamfer | r1,2 [mm] | 0.3 |
Chamfer - Open Side | r3,4 [mm] | 0.3 |
Bearing Load Ratings
Dynamic Radial Load Rating | C [N] | 6850 |
Static Radial Load Rating - Steel Balls | C0 [N] | 4350 |
Static Radial Load Rating - Si3N4 Balls | C0 HY [N] | 3050 |
Bearing RPM Ratings
Speed Value - Oil Lubrication | noil [1/min] | 63750 |
Speed Value - Grease Lubrication | ngrease [1/min] | 47500 |
Bearing Series | S |
Hybrid (Si3N4 Balls) | Yes |
Geometrical Data
Number of Balls | Z [Qty] | 15 |
Contact Angle | α0 [°] | 25 |
Bearing Weight | m [kg] | 0.036 |
Mating Part Dimensions
Abutment Diameter Inner Ring | da,b min [mm] | 23.0 |
Abutment Diameter Outer Ring | Da,b max [mm] | 33.5 |
Chamfer Associated Component | ra max [mm] | 0.3 |
Chamfer Associated Component - Open Side | rb max [mm] | 0.15 |
Bearing Preload Data
Light Pre-Load | Fv [N] | 55 |
Light Axial Rigidity | Cax [N/µm] | 62 |
Medium Pre-Load | Fv [N] | 170 |
Medium Axial Rigidity | Cax [N/µm] | 95 |
Heavy Pre-Load | Fv [N] | 340 |
Heavy Axial Rigidity | Cax [N/µm] | 125 |
Minimum Spring Pre-Load | Ff [N] | 250 |
Notes:
- Position of the oiling Nozzle (dT) for bearings with TA cage/ TXM cage upon request
- 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.