Inboard Drum Axle Series is a common axle structure for semi-trailers, characterized by brake drums located inside the wheel hub (close to the axle body). Compared to external structures, this design offers better sealing and stability, making it suitable for heavy-duty transport and complex road conditions. It is one of the mainstream configurations for logistics, engineering, and mining transportation.
| Model | Capacity( T) | Brake(mm) | Distance of brake chamber L4 | Axle Tube (mm) | Center distance of spring seat L3 | Stud | P.C.D D1 | Seam allowance D2 | Track L2(mm) | Bearing Inner/uter | Total Length L1(mm) | Weight (KG | Recommend ed Wheel |
| ZY-A1045 | 13 | 420×180 | 390 | φ1 27 | ≥970 | 10-M22x1.5 | 285.75 | 221.8 | 1840 | EM220149/10 HM518445/10 | ≈2180 | 360 | 7.50V-20 |
| ZY-A1046 | 13 | 420×180 | 382 | φ127 | ≥970 | 10 M22x1.5 | 335 | 280.8 | 1840 | IN518445/10 | ≈2180 | 345 | 7.50V-20 |
| ZY-A1047 | 13 | 420×180 | 385 | φ150 | ≥930 | 10-M22x1.5 | 285.76 | 220.8 | 1840 | HM518445/10 | ≈2180 | 360 | 7.50V-20 |
| ZY-A1048 | 13 | 420×180 | 382 | φ150 | ≥930 | 10-M22x1.5 | 335 | 280.8 | 1840 | HM518445/10 | ≈2180 | 340 | 7.50V-20 |
| ZY-A1049 | 14 | 420×220 | 350 | φ150 | ≥930 | 10-M22x1.5 | 335 | 280.8 | 1840 | HM518445/10 | ≈2180 | 358 | 7.50V-20 |
| ZY-A1050 | 15 | 420×180 | 390 | φ127 | ≥980 | 10-M22x1.5 | 335 | 280.8 | 1850 | HM220149/10 HM518445/10 | ≈2200 | 345 | 8.0V-20 |
| ZY-A1051 | 15 | 420×180 | 390 | φ150 | ≥940 | 10-M22x1.5 | 335 | 280.8 | 1850 | HM220149/10 HM518445/10 | ≈2200 | 370 | 8.0V-20 |
| ZY-A1052 | 16 | 420×220 | 350 | φ127 | ≥980 | 10-M22x1.5 | 335 | 280.8 | 1850 | HM220149/10 HM518445/10 | ≈2200 | 360 | 8.0V-20 |
| ZY-A1053 | 16 | 420×220 | 350 | φ150 | ≥940 | 10-M22x1.5 | 335 | 280.8 | 1850 | IBM220149/10 FM518445/10 | ≈2200 | 390 | 8.0V-20 |
| ZY-A1054 | 20 | 420×220 | 345 | φ150 | ≥940 | 10-M24×1.5 | 335 | 280.8 | 1850 | HN32222
HM518445/10 |
≈2256 | 430 | 8.0V-20 |
| ZY-A1055 | 25 | 420×220 | 345 | φ150 | ≥940 | 10-M24x1.5 | 335 | 280.8 | 1850 | IIN32222 HN30222 | ≈2270 | 475 | 8.0V-20 |
Product Advantages:
Strong sealing performance, adaptable to harsh environments
Stable structure, low failure rate
Long maintenance cycle, reducing operating costs
Mature technology, globally applicable
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