Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our Automotive Transmission Gearbox
Automotive gearbox transmission is the core component of vehicle powertrain systems, dedicated to transferring engine power and rotational speed to the drive wheels efficiently. By engaging different gear sets, it precisely adjusts output torque and rotational speed, enabling vehicles to adapt to various driving conditions—including starting, accelerating, climbing, and high-speed cruising—with optimal performance. Its key function is to maximize engine efficiency, enhance fuel economy, and ensure smooth driving dynamics and reliable control, making it a critical factor that directly impacts overall vehicle performance, durability, and driving experience. Our gearbox transmission is engineered to meet strict industry standards, available in multiple quality grades to suit diverse customer needs.
Multiple Quality Grades: We offer three quality options—refurbished, remanufactured, and brand new—catering to different budget and performance requirements, all passing strict quality inspections to ensure reliability.
12-Month Quality Guarantee: Enjoy a 12-month quality warranty from the date of customer receipt, providing peace of mind and professional after-sales support for any quality-related issues.
Flexible Order Support: Small-batch orders are welcome (retail orders excluded), supporting customized needs for small fleets, maintenance workshops, and auto parts distributors.
Secure & Compatible Packaging: Adopts high-strength wooden crate packaging to prevent damage during transportation; laser-compatible design ensures easy identification and integration with existing production or maintenance systems.
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 clear advantages in the following aspects:
Cost Control: Simple structure, low manufacturing costs, and affordable repair fees make it ideal for price-sensitive operational fleets, helping reduce long-term operational costs.
Durability & Controllability: In 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 market demands.
Typical Models:
Ford Ranger / Toyota Hilux: Base models or "work truck" versions in Southeast Asia, Australia, and South America often come with manual gearbox transmissions.
Light Vans/Trucks: Base versions of models such as Ford Transit and Mercedes-Benz Sprinter are equipped with manual gearboxes for enhanced practicality.
2. Hardcore Off-Road Vehicles
Manual gearbox transmissions are the preferred choice for hardcore off-road vehicles, thanks to their superior precision control. In extreme off-road environments (e.g., rock crawling, vehicle recovery), drivers can directly intervene in gear selection to precisely control wheel speed and torque, preventing the transmission logic from misjudging complex road conditions and ensuring stable performance in harsh environments.
Performance Parameters
Parameter Category | Details |
|---|---|
Max Input Torque | Range: 150 Nm (compact cars) to 600+ Nm (high-performance/light commercial vehicles); Safety Factor: Designed to withstand 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 or 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: Complies with overall vehicle NVH targets. |
Structure & Materials
Component | Specifications |
|---|---|
Housing | Material: Die-cast Aluminum Alloy (A380, ADC12); Heavy-duty models use Cast Iron; Features: High rigidity (resists gear meshing separation forces), 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 applications); Friction Material: Brass/Bronze, Sintered Metal, Carbon-fiber composites (high performance); Lock-up Angle: Precisely designed to prevent forced engagement before synchronization. |
Bearings | Types: Deep groove ball bearings, Tapered roller bearings, Needle roller bearings; Design Life: Matches vehicle life (>300,000 km or 5,000 hours). |
Shift Mechanism | Type: Cable-operated or Rod-operated; Precision: Equipped with interlock system to prevent accidental engagement. |
Lubrication & Sealing
Category | Specifications |
|---|---|
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 corrosive to synchronizers); Viscosity: 75W-80 or 75W-90 (Fully Synthetic). |
Sealing | Input/Output Shaft Seals: Fluoroelastomer (FKM/Viton) (resists high temperatures and oil corrosion); Breather Valve: Prevents internal pressure buildup (avoids leaks) and keeps out water/dust. |
Additional Notes
Avoid using API GL-5 oil in gearboxes designed for API GL-4, as sulfur content may corrode synchronizers and reduce service life.
Regular lubricant replacement (per vehicle manufacturer’s recommendations) is recommended to maintain transmission performance and extend service life.
Wooden crate packaging is moisture-proof and shock-proof; please check the packaging for damage upon receipt.
Small-batch orders require a minimum order quantity (MOQ); please contact our sales team for specific details.
Product Description
Core Product Advantages
Application Scenarios
Product Specifications & Additional Notes
Why Choose Our Automotive Transmission Gearbox
