4R6819 NTN ROLL NECK BEARINGS for ROLLING MILL
| Brand Name: |
NTN |
| Model Number: |
4R6819 |
| Series: |
29000 |
| Cone Part Number: |
29168 |
| Cup Part Number: |
29334 |
| Design Units: |
Imperial |
| Bearing Weight: |
0.5 Kg |
| Cage Type: |
Stamped Steel |
| d: |
42.863 mm |
| D: |
84.988 mm |
| PDF |
4R6819 |
Product Details
| Series |
29000 |
| Cone Part Number |
29168 |
| Cup Part Number |
29334 |
| Design Units |
Imperial |
| Bearing Weight |
0.5 Kg |
| Cage Type |
Stamped Steel |
| d |
42.863 mm |
| D |
84.988 mm |
| B - Cone Width |
19.164 mm |
| C - Cup Width |
15.875 mm |
| B |
18.999 mm |
| R - Cone Backface To Clear Radius1 |
1.520 mm |
| r - Cup Backface To Clear Radius2 |
1.52 mm |
| da - Cone Frontface Backing Diameter |
49.02 mm |
| db - Cone Backface Backing Diameter |
51.05 mm |
| Da - Cup Frontface Backing Diameter |
78.00 mm |
| Db - Cup Backface Backing Diameter |
73.91 mm |
| Ab - Cage-Cone Frontface Clearance |
2.3 mm |
| Aa - Cage-Cone Backface Clearance |
0.3 mm |
| a - Effective Center Location3 |
-1.3 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 |
3640 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 |
14000 lbf |
| C0 - Static Radial Rating |
15600 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
2770 lbf |
| K - Factor7 |
1.31 |
| e - ISO Factor8 |
0.44 |
| Y - ISO Factor9 |
1.35 |
| G1 - Heat Generation Factor (Roller-Raceway) |
23.8 |
| G2 - Heat Generation Factor (Rib-Roller End) |
15.3 |
| Cg - Geometry Factor |
0.0766 |