Structure Characteristics
- Twin countershaft in main case and tri-countershaft in auxiliary case; power split, large load capacity and high reliability.
- Mainshaft and gears on it are floating, no needle bearings between gears and shaft and high efficiency in power transfer .
- Gears adopt thin-and-fine teeth design (contact ratio ε>2), smooth engagement and low noise.
- Lock-pin synchronizer in auxiliary case, high-performance & non-metallic friction material for friction taper surfaces and high reliability
- Large range of gear ratios meets different road conditions with strong climbing ability .
- Combined design of main and auxiliary cases, small ratio steps and good fuel-efficiency .
- A variety of forms for power taking-off meet the power-output demands of all refitted trucks.
- Single H or double H, single-lever or double-lever operating mechanism can be realized.
Technical Parameter
| Models |
Torque (N·m) |
Gear Ratios |
Weight (Kg) |
Capacity (L) |
| Crawl |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
R |
| 9JSS180 |
1800 |
14.05 |
8.38 |
6.22 |
4.57 |
3.40 |
2.46 |
1.83 |
1.34 |
1.00 |
14.05 |
370 |
16 |
| 9JSS220 |
2200 |
14.05 |
8.38 |
6.22 |
4.57 |
3.40 |
2.46 |
1.83 |
1.34 |
1.00 |
14.05 |
370 |
16 |
| 9JSS260 |
2600 |
14.05 |
8.38 |
6.22 |
4.57 |
3.40 |
2.46 |
1.83 |
1.34 |
1.00 |
14.05 |
370 |
16 |
