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 (Nm) 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