Description
The drum brake axles have a zero offset hub with a choice of 19.5 or 22.5 inch wheel sizes. They offer high efficiency, thermal and mechanical stability and low peak stresses, together with consistent and predictable brake performance. The design combines proven technology with detail innovations to optimise performance and stability.
Axle beam
The axle is based on an extremely strong seamless, cold-drawn beam design. The non-welded beam structure eliminates risks of weakening or material degradation. The VALX axle beam has a higher strength-to-weight ratio than any other in Europe, and forms the basis for long-term durability under tough operating conditions.
Air suspension
The specially developed Weweler air suspension meets the VALX philosophy of light weight, low component count and minimal maintenance. A wide range of ride heights and offsets can be accommodated by only one type of shock absorber, trailing arm, air spring, hanger bracket and two different tail ends.
Hub
Highly accurate CNC machining and reduced tolerances ensure accurate bearing pre‑setting and an even pressure distribution across the bearings. The wide bearing spread minimises bearing loads and maximises bearing life, while reducing sensitivity to brake heat transfer.
Bearings
The bearing solution is based on two single-row preset tapered roller bearings, combining cost-effective maintenance with maximum performance and reliability with minimum total cost of operation. Optimised pre-setting maximises bearing life and brake performance.
Seal
For the VALX axle hub SKF supplies the specially developed Scotseal PlusXL, made of high-temperature resistant, long-life HNBR rubber to exclude dirt and moisture from the wheel bearings. Together with the bearings themselves, the seals are retained in place by a circlip when the hub is removed, simplifying service and maintaining the integrity and cleanliness of the hub assembly.
Friction material
The Textar T0124 trailer friction material is specially designed and developed for VALX S-Cam foundation brakes
| Specifications | DRUM 420 | DRUM 360 |
|---|---|---|
| Axle load | 9000 kg | 9000 kg |
| Wheel size | 22.5″ | 19.5″ |
| Axle beam | 1 piece ~ Ø 146 | 1 piece ~ Ø 146 |
| Hub offset | 0 mm | 0 mm |
| Wheelbolts and dimensions | 10 ~ M22 × 1.5 | 8 – 10 ~ M22 × 1.5 |
| Wheel bolt circle | 335 mm | 275 mm |
| Brake dimensions | 420 x 180 mm | 360 x 200 mm |
| Self Steering axle | Optional | – |
| E2! energy axle | Optional | Optional |
| Axle lift | Optional | Optional |
| Hubodometer | Optional | Optional |
