Self Steering Intra IU Disk Brake Axle
The Self Steering Intra IU Disk Brake Axle is one of the advanced and specialized products in the field of heavy axle design and manufacturing, developed to enhance steering precision and improve safety in heavy transportation fleets.
This axle is equipped with a Ø430 mm disc brake system and has an axle load capacity of 9,000 kilograms, enabling faster stopping, better control, and reduced wear on the braking system.
Its key dimensions include an LBM ranging from 1470 to 1520 mm, BM from 920 to 970 mm, FM from 980 to 1030 mm, and SP between 2040 and 2095 mm. These specifications provide flexibility in installation and compatibility with various heavy vehicle configurations.
The axle is designed for 10-bolt wheels with specifications 280/335 and M22×1.5 bolts, and the recommended tire size is 385/65 R 22.5.
Axle Technical Data Table
| Product code | Axle Load | Brake system | LBM | BM | FM | SP | OH/K | Tyres Recommended |
|---|---|---|---|---|---|---|---|---|
| - | 9000kg | Disk Brake Ø430 | 1470 | 920 | 980 | 2040 | 280/335 10Bolts M22 x 1.5 |
385/65R 22.5 |
| - | 1520 | 970 | 1030 | 2095 |
Suspension System Specifications
| E | C | F | D | G | Empty without air X(mm) | Loaded without air X(mm) | Air Spring Bracket(mm) | ST | FH |
|---|---|---|---|---|---|---|---|---|---|
| 310 | 90 | 35 | 110 | 140 | 155 | 140 | - | 200 | 250 |
| 185 | 170 | 50 | 280 | ||||||
| 325 | 90 | 35 | 80 | 140 | 205 | 190 | 250 | 300 | |
| 235 | 220 | 100 | 330 | ||||||
| 340 | 90 | 85 | 80 | 140 | 255 | 240 | 300 | 350 |
Axle Technical Data Table
Suspension System Specifications
In terms of the suspension system, the Self Steering Intra IU Disk Brake Axle is engineered with precise geometry and optimized parameters to deliver stable performance under various loading conditions. The X distances in both unloaded and loaded states are set within a range of 140 to 240 mm, while the air spring bracket is designed within a range of 250 to 350 mm, ensuring proper force distribution and extended service life of the assembly.
Additionally, the ST and FH values are defined between 80 and 140 mm, which guarantees the strength and stability of the system. These features, combined with precise steerability and reliable braking performance, make the IU kingpin disc axle an ideal choice for modern road transport fleets and heavy industrial applications.

