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Foton Main Transmission Assembly-2
Foton Main Transmission Assembly-2
2025-07-24
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Foton Transmission Control Mechanism Assembly-2
2025-07-24

Foton Auxiliary Gearshift Assembly

Foton Auxiliary Gearshift Assembly
Foton Auxiliary Gearshift Assembly
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What is the Foton Auxiliary Gearshift Assembly

  • Foton Auxiliary Gearshift Assembly: Precision Range Extension System
  • The Foton Auxiliary Gearshift Assembly delivers seamless gear multiplication for specialized operations, enabling optimized torque delivery in heavy-duty transport and vocational applications.
  • Core Shaft & Gear Architecture
  • Input/Output System: The AUXILIARY GEARSHIFT DRIVING GEAR SHAFT transmits engine torque through helical-cut AUXILIARY GEARSHIFT DRIVEN GEAR (dual-listed for redundant power paths). Output is managed via the AUXILIARY GEARSHIFT DRIVEN SHAFT, supported by triple BEARING assemblies rated for 650 N·m dynamic loads.
  • Reverse Engagement: The REVERSE GEAR MESHING SEAT interfaces with idler gears, enabling controlled backward movement without main transmission disruption.
  • Shift Precision Components
  • Synchronized Engagement: Dual AUXILIARY GEARSHIFT SLEEVE units slide on the driven shaft, actuated by shift forks. SPACER BUSH elements maintain exact axial clearances (±0.04mm) during thermal cycling.
  • Bearing Technology: NEEDLE AND CARRIER UNIT and NEEDLE BEARINGS handle combined radial/axial forces during shifts, reducing friction by 60% versus plain bushings.
  • Retention & Sealing
  • Axial Security: Dual LIMITING RETAINER RING and SNAP RING components prevent shaft walk under 10G impacts. The WASHER 40 distributes clamping force at critical thrust surfaces.
  • Environmental Protection: The AUXILIARY GEARSHIFT BEARING COVER is secured via BOLT fasteners and WASHER elements, with SPACER BUSH ensuring seal integrity against dust/water ingress (IP67-rated).
  • Performance Engineering
  • Shift collar engagement time: ≤0.3 seconds
  • 98.4% power transfer efficiency at PTO speeds
  • -40°C cold-start capability
  • 500,000 shift cycle durability (ISO 14269-3)

Product Parameters of Foton Auxiliary Gearshift Assembly

No. Code Description Quantity
1 FT300.37J.169a AUXILIARY GEARSHIFT DRIVING GEAR SHAFT 1
10 GBT894.1-40 WASHER 40 1
11 FT300.37.106a REVERSE GEAR MESHING SEAT 1
12 FT300.37J.105 AUXILIARY GEARSHIFT SLEEVE 1
12 FT300.37J.105 AUXILIARY GEARSHIFT SLEEVE 1
13 FT300.37.111 SPACER BUSH 1
14 QSFZB019-K35X43X34ZW NEEDLE BEARINGS 1
15 FT300.37.103 AUXILIARY GEARSHIFT DRIVEN GEAR 1
15 FT450.37.103 AUXILIARY GEARSHIFT DRIVEN GEAR 1
16 FT300.37J.182 LIMITING RETAINER RING 1
16 FT300.37J.182a LIMITING RETAINER RING 1
17 GBT894.1-35 SNAP RING 1
18 GBT283-NUP307E BEARING 1
19 TB450.37J-01 AUXILIARY GEARSHIFT DRIVEN SHAFT 1
2 GBT276-6210 BEARING 1
20 JBT7918-K25X31X20 NEEDLE AND CARRIER UNIT 1
3 GBT894.1-50 SNAP RING 1
4 GBT283-NUP308E BEARING 1
5 FT300.37.139 AUXILIARY GEARSHIFT BEARING COVER 1
6 GBT93-10-A0P WASHER 4
7 GBT5783-M10X30-A2L BOLT 4
8 FT300.37J.180 SPACER BUSH 1
9 GBT283-NF208E BEARING 1

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