Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our Transmission Gearbox for Automotive Powertrains
The gearbox transmission is the core component of an automotive powertrain, dedicated to transferring engine power and rotational speed to the drive wheels. By engaging different gear sets, it precisely adjusts output torque and rotational speed, enabling vehicles to smoothly handle all driving scenarios—including starting, accelerating, climbing, and high-speed cruising.
Our gearbox transmission is engineered to optimize engine efficiency, enhance fuel economy, and ensure stable driving dynamics and precise control, directly determining the overall performance, reliability, and durability of the vehicle. Suitable for commercial vehicles, light trucks, and hardcore off-road vehicles, we offer three quality grades to meet diverse customer needs, backed by a 12-month quality guarantee for peace of mind.
Flexible Quality Options: We provide three quality grades—refurbished, remanufactured, and brand new—catering to different budget and performance requirements of customers.
12-Month Quality Guarantee: Enjoy a 12-month quality warranty service starting from the date of customer receipt, ensuring product reliability and reducing after-sales risks.
Small-Batch Order Acceptable: We support small-batch orders (retail orders excluded), meeting the customized needs of small fleets or special vehicle projects.
Secure & Compatible Packaging: Adopt wooden crate packaging for safe transportation, with laser compatibility to ensure seamless matching with different vehicle models.
1. Commercial Vehicles & Light Trucks
Manual gearbox transmissions are widely used in fields requiring high reliability, low maintenance costs, and precise control under specific working conditions, with the following core logic:
Cost Control: Manual transmissions feature a simple structure, low manufacturing costs, and affordable maintenance, making them ideal for price-sensitive operational fleets that prioritize cost-effectiveness.
Durability & Controllability: In scenarios such as heavy-load starts, low-speed climbing, or rough terrain, drivers can manually select gears to better control torque output, avoiding frequent shifting or overheating issues common in automatic transmissions.
Regional Adaptability: In developing countries and parts of Europe, manual transmissions maintain a high proportion in light commercial vehicles (vans) and pickup trucks, aligning with local driving habits and operational needs.
Typical Models: Ford Ranger, Toyota Hilux (base models or "work truck" versions in Southeast Asia, Australia, and South America); Ford Transit, Mercedes-Benz Sprinter (base versions of light vans/trucks).
2. Hardcore Off-Road Vehicles
Precision Control: In extreme off-road environments (e.g., rock crawling, vehicle recovery), drivers require precise control over wheel speed and torque. Manual gearbox transmissions allow for more direct human intervention, preventing the transmission logic from misjudging complex off-road situations and ensuring stable performance in harsh conditions.
Performance Parameters
Parameter Category | Details |
|---|---|
Max Input Torque | Range: 150 Nm (compact cars) to 600+ Nm (high-performance/light commercial vehicles); Safety Factor: Withstands 1.5x – 2.0x rated torque instantaneous shock loads without permanent deformation |
Gear Count | Mainstream Passenger Cars: 5-speed or 6-speed; High-Performance/Commercial: 7-speed or more (for specific heavy-duty/supercar applications); Reverse Gear: 1 (non-synchronized spur gear or helical gear) |
Ratio Spread | 1st Gear Ratio: 3.5 – 4.5 (for starting torque); Top Gear Ratio: 0.70 – 0.85 (Overdrive, for fuel-efficient highway cruising); Total Ratio Spread: 4.5 – 6.0 |
Shift Effort | Static Shift Force: < 40 – 60 N (varies by gear and temperature); Dynamic Shift Force: Smooth under rated RPM with no binding |
Efficiency | Mechanical Efficiency: 96% – 98% (higher than automatic transmissions, no torque converter slip or high-pressure oil pump losses) |
NVH Characteristics | Gear Whine Noise: < 75 dB(A) @ rated speed/load; Shift Shock Noise: Meets overall vehicle NVH targets |
Structure & Materials
Component | Details |
|---|---|
Housing | Material: Die-cast Aluminum Alloy (A380, ADC12); Heavy-duty models use Cast Iron; Features: High rigidity, optimized fin design for heat dissipation |
Gear Set | Material: Carburized alloy steel (20MnCr5, 18CrNiMo7-6); Process: Hardened tooth surface grinding/honing, ISO 6-7 precision grade; Type: Constant Mesh Helical Gears |
Synchronizers | Type: Single-cone, Double-cone, Triple-cone (for 1st/2nd gears or high-performance); Friction Material: Brass/Bronze, Sintered Metal, Carbon-fiber composites; Lock-up Angle: Precisely designed to prevent forced engagement |
Bearings | Types: Deep groove ball bearings, Tapered roller bearings, Needle roller bearings; Life: >300,000 km or 5,000 hours (matches vehicle life) |
Shift Mechanism | Type: Cable-operated or Rod-operated; Precision: Equipped with interlock system to prevent accidental engagement |
Lubrication & Sealing
Category | Details |
|---|---|
Oil Capacity | 1.5 – 3.0 Liters (varies by model) |
Oil Specifications | API GL-4 (most common, protects synchronizers); API GL-5 (for specific designs, caution with sulfur content); Viscosity: 75W-80 or 75W-90 (Fully Synthetic) |
Sealing | Input/Output Shaft Seals: Fluoroelastomer (FKM/Viton) (resists high temperature and oil corrosion); Breather Valve: Prevents internal pressure buildup and keeps out water/dust |
Additional Notes
Retail orders are not accepted; small-batch orders are welcome (minimum order quantity negotiable).
Wooden crate packaging is standard; customized packaging can be provided for large-batch orders.
API GL-5 oil is only suitable for specific gearbox designs; improper use may damage synchronizers.
All products undergo strict quality inspection before delivery to ensure compliance with specifications.
Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our Transmission Gearbox for Automotive Powertrains
