Le réglage et l'entretien des pignons

Understanding how the transmission works

Gearing is the heart of any RC vehicle . It translates motor energy into motion, allowing your RC car or truck to navigate varied terrain at impressive speeds. But to understand how this happens, it's essential to break down and understand the individual components of gearing.

Explanation of the different elements of the transmission

The clutch bell

This part, usually located on the engine flywheel, is responsible for transmitting power from the engine to the gear . When the engine turns, the clutch bell also turns, which engages the gear to transfer power.

The pinion

The pinion is the smallest gear in the gear system. It is attached to the engine output shaft , and it is this which acts as the relay between the clutch bell and the crown.

Spur gear and crown

These two elements work together to transmit power from the sprocket to the vehicle's wheels . The spur gear is larger than the pinion and is usually mounted on the wheel spindle or axle. The ring gear is another form of main gear and works in the same way.

Transfer of power from the engine to the wheels

The operation of the gear is a harmonious and interconnected process. It all starts with the engine. When the engine is running, it turns the clutch bell. As this bell is connected to the pinion, it transmits the movement to the pinion.

The pinion, being the smallest gear, rotates at a high speed and transmits its rotation to the ring gear. Because these gears are larger, they rotate more slowly, but with more force. It is this mechanism that allows your RC car to climb steep slopes and traverse difficult terrain.

In short, each gear component plays a crucial role in the movement of your RC vehicle . A better understanding of how they work can help you optimize the performance of your RC car or truck and resolve any potential issues that may arise.

Gear adjustment

Adjusting the gearing on your RC model vehicle can seem like a daunting task, but with the right tools and a good understanding of the process, it can be quite simple.

Necessary tools for gear adjustment

Before you begin the gear adjustment process, make sure you have all the necessary tools on hand. You will need an Allen key or screwdriver to make adjustments, and a sheet of aluminum foil or tracing paper to check the correct tooth spacing of your gears.

Step-by-step guide to gear adjustment

For electric RC vehicles , start by removing the motor plate to expose the gears. Slightly loosen the screws holding the motor in place, without removing them completely. Next, move the motor until the pinion and main gear have the correct gap, then retighten the screws to secure the motor in place.

In the case of thermal RC vehicles , the process is similar. Remove the engine plate, adjust the clutch housing so that it has the correct tooth gap with the sprocket. Make sure the clutch housing is neither too tight nor too loose to ensure efficient power transfer.

The importance of a proper 'gap' between gears

Correct tooth spacing is essential for optimal gear operation . Too tight a tooth gap can cause excessive wear and overheating of the engine. Conversely, a tooth gap that is too wide can cause a loss of power and jerky operation of the vehicle. Proper gear spacing ensures smooth operation and extends the life of your gear system.

Tip for adjusting the spacing of gears using paper

A handy tip for checking the gap is to use a sheet of aluminum foil or tracing paper . Insert the paper between the teeth of the main gear and pinion and rotate the main gear. If the paper passes between the teeth without much resistance, but is not too loose either, then you probably have the correct gap. This simple but effective technique can help keep your RC vehicle running optimally. Note that the tighter the teeth of the pinion, the finer the tooth gap must be; conversely, spaced teeth must have more “play” in this case, the sheet can be folded in half.

How to maintain your gears

Effective maintenance and management of your RC model vehicle's gears is essential to ensure longevity and optimal performance . Discover some tips to help you better manage your gears.

Check the pinion fixation

The sprocket screw plays a crucial role in holding the sprocket in place. If this screw is worn or damaged, it could cause an offset in pinion positioning and accelerate gear wear . Therefore, it is important to replace it as soon as you notice signs of wear.

When replacing the screw, the use of a thread locker is recommended. This product acts as a type of screw glue , which helps hold the screw in place and reduces the chance of it coming loose during vehicle use.

How to extend the life of your sprockets

To extend the life of your gears , it is essential to clean them regularly to remove dust, dirt and debris that can build up and cause excessive wear. Additionally, regular lubrication with a suitable lubricant can help reduce friction between gears and extend their life.

It is also recommended to avoid sudden starts and stops with your RC vehicle. This type of driving can cause excessive stress on the gears and lead to premature wear.

Finally, it is crucial to monitor the condition of your gears . If you notice signs of wear or damage, do not hesitate to replace them to avoid further damage to your vehicle. Proactive maintenance is the key to keeping your RC model vehicle in good working order.

Bricolage & maintenance
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