Product Info

■ 1. What is a Camshaft Gear?
A camshaft gear is a gear installed on the camshaft in an engine. It transmits power from the crankshaft to the camshaft to control the opening and closing of the intake and exhaust valves in sync with the movement of each piston. Although it may seem like a small component, the precision of the camshaft gear directly affects the "engine timing," which influences combustion, torque, performance, and fuel efficiency.

■ 2. How Does a Camshaft Gear Work in an Engine System?
In a four-stroke engine, the crankshaft rotates twice for every one rotation of the camshaft, meaning the camshaft gear must have a 2:1 ratio to maintain the correct timing of the valves relative to the piston positions.
If this timing is off by even a single tooth, it can cause the valves to open and close at the wrong time, leading to vibrations, noise, or abnormal engine operation.

■ 3. Why is the Precision of a Camshaft Gear Important?
A camshaft gear requires:
- Precision in gear teeth: To ensure consistent rotation without jerking.
- Durable materials: To withstand torque and wear over time.
- Secure engagement with the belt or chain: Must be robust to avoid slipping or shifting during continuous operation.
Well-designed engine systems pay attention to small details like this gear because excessive backlash or wear can immediately reduce performance.

■ 4. Camshaft Gears in High-Performance Engines
In high-performance engines or systems with Variable Valve Timing (VVT), the camshaft gear must work in conjunction with electrical or hydraulic control systems to dynamically change the valve timing.
Therefore, the gears used must:
- Withstand high impact and torque.
- Respond quickly without delay.
- Have high surface hardness but maintain toughness in the core.
Some models may have special surface treatments like Nitriding or DLC to increase durability and reduce friction.

■ 5. Camshaft Gears in Automotive Engineering
In designing valve actuation systems, engineers select the type of gear that suits the application, such as:
- Spur Gear: Used in systems that require precision and no lateral movement.
- Helical Gear: Helps reduce noise, operates quietly, and can withstand more force.
- Gears with adjustable angles: Used in engines that can adjust valve opening angles for optimal combustion efficiency.