SIGMA ESA 20 0644 thrust ball bearings
| Brand Name: |
SIGMA |
| Model Number: |
ESA 20 0644 |
| Series: |
775 |
| Cone Part Number: |
777 |
| Design Units: |
Imperial |
| Cage Type: |
Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: |
135000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: |
35100 lbf |
| d: |
3.7500 in |
| B - Cone Width: |
1.8900 in |
| PDF |
ESA 20 0644 |
Product Details
| Series |
775 |
| Cone Part Number |
777 |
| Design Units |
Imperial |
| Cage Type |
Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 |
135000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 |
35100 lbf |
| d |
3.7500 in |
| B - Cone Width |
1.8900 in |
| R - Cone Backface To Clear Radius3 |
0.380 in |
| da - Cone Frontface Backing Diameter |
4.21 in |
| db - Cone Backface Backing Diameter |
4.96 in |
| Ab - Cage-Cone Frontface Clearance |
0.07 in |
| Aa - Cage-Cone Backface Clearance |
0.13 in |
| a - Effective Center Location4 |
-0.32 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 |
20200 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 |
77800 lbf |
| C0 - Static Radial Rating |
111000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 |
13300 lbf |
| K - Factor8 |
1.51 |
| G1 - Heat Generation Factor (Roller-Raceway) |
227.3 |
| G2 - Heat Generation Factor (Rib-Roller End) |
41.3 |
| Cg - Geometry Factor |
0.107 |