U.400.12 bearings ( 292 mm x 400 mm x 55 mm) have the advantages of High load-bearing capacity, flexible steering, and durable, and are therefore widely used in the Heavy transport and special trailers, large agricultural machinery and trailers.

| Part Number | U.400.12 |
| Gear type | Without Gear |
| Bearing Type | Slewing rings |
| Weight [kg] | 8 |
| Seal | Open |
| Interchangeable | TGB U.400.12 |
| G NO. | 1 |
| Dimensions | |
| Ball diameter [mm] | 12.70 |
| Da [mm] | 400 |
| Db [mm] | 400 |
| U [mm] | 310 |
| Di [mm] | 292 |
| H [mm] | 55 |
| A [mm] | 10 |
| Fixing holes | |
| La [mm] | 375 |
| Axial Load [N] | 7500 |
The U.400.12 Trailer slewing bearings (lightweight slewing bearings) are mainly composed of thin-walled inner and outer rings, steel balls or rollers, spacers, and sealing devices. Mounting holes are provided on the inner and outer rings for bolt connection; some models can integrate gears. They feature a compact structure, lightweight design, and small cross-sectional dimensions.
Trailer slewing bearings are lightweight, rotate flexibly, and are easy to install and maintain. They can simultaneously withstand axial loads, radial loads, and overturning moments, possessing excellent load-bearing capacity. Direct bolt fixing eliminates the need for complex mounting seats, simplifying the connection structure between the trailer chassis and the superstructure.















