JRZC BE Series Spherical Roller Bearings, part of the FAG brand under the Schaeffler Group, feature X-life (XL) premium technology, representing an advanced design level in the field of spherical roller bearings. This series is primarily designed for heavy-load applications, misalignment compensation, and high-reliability requirements in industrial environments.
| Bore diameter | 300 mm |
| Outside diameter | 460 mm |
| Width | 160 mm |
| Basic dynamic load rating | 2850 kN |
| Basic static load rating | 4900 kN |
| Grease Reference speed | 720 r/min |
| Oil Limiting speed | 1250 r/min |
| Bore type | Cylindrical |
| For Load Direction | Radial |
| Number of rows | Double row |
| Radial internal clearance | C3 |
| Tolerance class for dimensions | Nomal |
| Tolerance class for run-out | P6 |
| Seal type | Contact |
| Lubricant | Grease |
| Relubrication feature | Without |
| Product net weight | 94.16 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Sheet metal |
The "XL" suffix in the BE series indicates that the product meets X-life quality standards, offering significant performance improvements over conventional designs:
Higher Load Carrying Capacity: By optimizing the internal structure, increasing the size of the rolling elements, and removing the inner ring center rib, the rollers are longer and larger. This increases the basic dynamic load rating by up to 15%, significantly extending bearing service life under heavy-load conditions.
Increased Speed Capability: Optimized contact geometry between the rollers and raceways, combined with improved surface finishes, reduces friction significantly. This allows for a speed increase of up to 50% compared to standard designs.
Extended Service Life: Under the same operating conditions, X-life bearings can achieve a nominal service life up to 60% longer than conventionally designed bearings.