Z-527502.03.WGTR bearings ( 180 mm x 406.42 mm x 171.04 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 | Z-527502.03.WGTR |
| Interchangeable | FAG Z-527502.03.WGTR |
| Bearing Type | Back-up Rollers |
| Cage | first and second rows (double comb cage), third row (single comb cage) |
| Application | multi-roll cold rolling mills |
| Outer ring material | Shell hardened steel |
| Roller Material | GCr15SiMn |
| Type | 1 |
| Alias | Non-locating bearing |
| Rows NO. | Three |
| Bearing Mass - m [lb] | 286.5980 |
| Dimension | |
| Inside - d φ [inch] | 7.0866 |
| Outside - D Φ [inch] | 16.0008 |
| Width - B [inch] | 6.7338 |
| Width - C [inch] | 6.7323 |
| Section height - h [inch] | 4.4549 |
| Performance | |
| Radial Dynamic - Cr [lbf] | 467414 |
| Radial static - C0r [lbf] | 865175 |
| Back-up roller dyn. - Crw [lbf] | 318970 |
| Back-up roller stat. - C0rw [lbf] | 572915 |
The Z-527502.03.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.















