F-801644.02.WGTR bearings ( 100 mm x 225 mm x 120 mm) have the advantages of High rigidity, high load-bearing capacity and precision retention, and are therefore widely used in the Backing for multi-roll mills.

| Part Number | F-801644.02.WGTR |
| Interchangeable | FAG F-801644.02.WGTR |
| Bearing Type | Back-up Rollers |
| Cage | brass double comb cage |
| Application | multi-roll cold rolling mills |
| Outer ring material | Rolling bearing steel (chromium steel) |
| Roller Material | GCr15SiMn |
| Type | 2 (full complement design) |
| Alias | Locating bearing |
| Rows NO. | Two |
| Bearing Mass - m [lb] | 57.3196 |
| Dimension | |
| Inside - d φ [inch] | 3.9370 |
| Outside - D Φ [inch] | 8.8582 |
| Width - B [inch] | 4.7244 |
| Width - C [inch] | 4.6850 |
| Section height - h [inch] | 2.4606 |
| Performance | |
| Radial Dynamic - Cr [lbf] | 172827 |
| Radial static - C0r [lbf] | 294157 |
| Back-up roller dyn. - Crw [lbf] | 125701 |
| Back-up roller stat. - C0rw [lbf] | 208773 |
The F-801644.02.WGTR Backed bearings primarily consist of an inner ring, an outer ring, single-row, double-row, or triple-row cylindrical rollers, and a cage. The outer ring is exceptionally thick, and the rollers and raceways feature a logarithmic profile design to optimize load distribution and reduce edge stress.
Backed bearings possess extremely high load-carrying capacity, capable of withstanding heavy loads and impact loads, while exhibiting low friction, minimal heat generation, and a long service life. The outer surface of the outer ring also utilizes a logarithmic profile, reducing edge loads during operation and improving operational reliability.















