China 40kg Rc Servo CYS-S8218 with Iron Core and Metal Gear,Digital Waterproof Servo for 15 Rc Car with Good quality

Type: Batteries, Radio Systems, digital Rc Servo
Gender: Unisex
Age Range: 14 Years & up
Use: Vehicles & Remote Control Toys
Model Number: CYS-S8218
Product Name: CYS-S8218
Color: Black Red
Size: 59.5*29*55.2mm
Brand: CYS
Weight: 164g
MOQ: 3 Pieces
Pulse Widthrange: 800-2200Us
Limit Angle: 180°
Gear Type: Metal Gear
Packaging Details: Prodcut Size: 59.5*29*55.2mm Package Size: 81*44*62mmProduct Weight:164g Package Weight: 203gCarton Size:44.5*27.5*22.5cm/35*25*20cmAccessories: Rubber*4Grommet*4Main screw*2Screw*4Plastic servo arm*1Half plastic servo arm*1Wheel Horn*1

40kg Torque Rc Servo with Iron Core and Metal Gear,Digital Waterproof Servo for 1:5 Rc Car
Product Paramenters

Item NO.CYS-S8218
TypeDigital Servo
Gear TypeMetal Gear
Control System (+)Pulse Width Control 1500μsec Neutral
Operating Voltage6.0V-7.4V
Operating Temperature Range (-)10 to +50 degree C
Operating Speed @ 6.0V-7.4V0.2sec – 0.18sec at no load
Stall Torque @ 6.0V
Current Drain (6.0V)20mA/idle and 800mA no load operating
Current Drain (7.4V)20mA/idle and 1300mA no load operating
Stall Current7.5A/8.6A
Dead Band Width3μsec
Bearing TypeBB*2
Motor TypeIron Core
Horn gear spline17T
Wire informationBrown(N) Red (P) Orange(S)
Details Images Recommend Products Certifications Company Profile CYS Model Technology co., ltd is located in manufacturing capital of the world – HangZhou, ZheJiang , which is the high-tech enterprise engaged in integrating Research and development, manufacturing and selling.

Since 2009, CYS has been focusing on developing the professional servo motor and high precision gear system. With the mission “Quality first, trustworthiness”, CYS is keeping improving the technical, service and gradually to be 1 of the famous brand in the industry.

With continuous development of the market demand, today CYS owns hundreds kinds of servos which assist more and more industries for progress. Including
– RC models
– Smart robotic for service, education and escort
– Smart home for automatic door, electronic lock and automatic windows

Through 10 years research and development of servo, CYS technical team is professional and experienced to offer customized solution for OEM,ODM customer, Hong Yu Hot Sales EDM Parts Stamping die Tungsten Carbied Mold Punches and Dies Precision Insert which is 1 of our most competitive advantage. With continuously optimized automated production equipment, modern assembly line operations, and its advanced testing and analysis instruments, automatic CNC machining center, CNC gear hobbing machine, assembly line, CYS has been the guarantee of delivery time and product quality.
Meanwhile CYS has passed I S O 9 0 0 1 certification, product certificates include CE, RoHS, FCC etc.

Team of CYS always insists on the concept “down to earth”, expecting to build brilliant career with customers together, strive to build an international well-known brand: CYS.
Why Choose Us Our Services1, Support samples test and OEM order.
2, Provide professional technical support.
3, 100% product testing before shipping.
4, You will get the reply within 24 hours.
Shipping way: DHL/UPS/TNT/Fedex etc.
Delivery time:
For samples in stock,1-3 days after the payment.
For bulk order in stock, 7-10 days after the payment.
For items without stock the usual production period 30days.
For OEM&ODM need to be negotiated.
FAQ 1, Custom Plastic Injection Mold In China With Factory Price Plastic Molding Parts May I take some samples to do test?

Yes, you are welcome to ask for some samples to do some test, meanwhile you can make the requests to us. We are not afraid that you have many requests, we just worry about that you require nothing.

2, Are you a manufacturer or a trade company?
We are manufacturer with factory in HangZhou, our foreign trade office is in HangZhou. It’s our pleasure that you come to visit our factory.
Do not worry about the language, our employee can speak English very well.

3, There are so many types of servos, sometimes I have no idea about how to make my choice, can you offer some help?
Yes, we are a professional manufacturer, which has over 10 years experience in Servo Industry. Our working team can help you do the analysis according to your specification about the model or the items you want, so that we can recommend you the suitable servo.

4, Do you support the OEM or ODM?
Through 10 years research and development of servo, CYS technical team is professional and experienced to offer customized solution for OEM,ODM customer, which is 1 of our most competitive advantage.

5, How about your delivery time?
For samples with stock:1-3days.
For product without stock, the usual production period is:30 days.
For OEM&ODM, Our hot selling injection mold processing plastic processing shell plastic mold opening manufacturing high-quality wholesale it needs to be negotiated.

6, What the product warranty you can offer?
For different servo, we can provide you a warranty from 6 months to 1 year.

If you have any further question, please feel free to contact me.

The Parts of a Gearbox

There are many parts of a Gearbox, and this article will help you understand its functions and components. Learn about its maintenance and proper care, and you’ll be on your way to repairing your car. The complexity of a Gearbox also makes it easy to make mistakes. Learn about its functions and components so that you’ll be able to make the best choices possible. Read on to learn more. Then, get your car ready for winter!


Gearboxes are fully integrated mechanical components that consist of a series of gears. They also contain shafts, bearings, and a flange to mount a motor. The terms gearhead and gearbox are not often used interchangeably in the motion industry, but they are often synonymous. Gearheads are open gearing assemblies that are installed in a machine frame. Some newer designs, such as battery-powered mobile units, require tighter integration.
The power losses in a gearbox can be divided into no-load and load-dependent losses. The no-load losses originate in the gear pair and the bearings and are proportional to the ratio of shaft speed and torque. The latter is a function of the coefficient of friction and speed. The no-load losses are the most serious, since they represent the largest proportion of the total loss. This is because they increase with speed.
Temperature measurement is another important preventive maintenance practice. The heat generated by the gearbox can damage components. High-temperature oil degrades quickly at high temperatures, which is why the sump oil temperature should be monitored periodically. The maximum temperature for R&O mineral oils is 93degC. However, if the sump oil temperature is more than 200degF, it can cause seal damage, gear and bearing wear, and premature failure of the gearbox.
Regardless of its size, the gearbox is a crucial part of a car’s drivetrain. Whether the car is a sports car, a luxury car, or a farm tractor, the gearbox is an essential component of the vehicle. There are two main types of gearbox: standard and precision. Each has its own advantages and disadvantages. The most important consideration when selecting a gearbox is the torque output.
The main shaft and the clutch shaft are the two major components of a gearbox. The main shaft runs at engine speed and the countershaft may be at a lower speed. In addition to the main shaft, the clutch shaft has a bearing. The gear ratio determines the amount of torque that can be transferred between the countershaft and the main shaft. The drive shaft also has another name: the propeller shaft.
The gears, shafts, and hub/shaft connection are designed according to endurance design standards. Depending on the application, each component must be able to withstand the normal stresses that the system will experience. Oftentimes, the minimum speed range is ten to twenty m/s. However, this range can differ between different transmissions. Generally, the gears and shafts in a gearbox should have an endurance limit that is less than that limit.
The bearings in a gearbox are considered wear parts. While they should be replaced when they wear down, they can be kept in service much longer than their intended L10 life. Using predictive maintenance, manufacturers can determine when to replace the bearing before it damages the gears and other components. For a gearbox to function properly, it must have all the components listed above. And the clutch, which enables the transmission of torque, is considered the most important component.


A gearbox is a fully integrated mechanical component that consists of mating gears. It is enclosed in a housing that houses the shafts, bearings, and flange for motor mounting. The purpose of a gearbox is to increase torque and change the speed of an engine by connecting the two rotating shafts together. A gearbox is generally made up of multiple gears that are linked together using couplings, belts, chains, or hollow shaft connections. When power and torque are held constant, speed and torque are inversely proportional. The speed of a gearbox is determined by the ratio of the gears that are engaged to transmit power.
The gear ratios in a gearbox are the number of steps a motor can take to convert torque into horsepower. The amount of torque required at the wheels depends on the operating conditions. A vehicle needs more torque than its peak torque when it is moving from a standstill. Therefore, the first gear ratio is used to increase torque and move the vehicle forward. To move up a gradient, more torque is required. To maintain momentum, the intermediate gear ratio is used.
As metal-to-metal contact is a common cause of gearbox failure, it is essential to monitor the condition of these components closely. The main focus of the proactive series of tests is abnormal wear and contamination, while the preventative tests focus on oil condition and additive depletion. The AN and ferrous density tests are exceptions to this rule, but they are used more for detecting abnormal additive depletion. In addition, lubrication is critical to the efficiency of gearboxes.


Daily maintenance is a critical aspect of the life cycle of a gearbox. During maintenance, you must inspect all gearbox connection parts. Any loose or damaged connection part should be tightened immediately. Oil can be tested using an infrared thermometer and particle counters, spectrometric analysis, or ferrography. You should check for excessive wear and tear, cracks, and oil leaks. If any of these components fail, you should replace them as soon as possible.
Proper analysis of failure patterns is a necessary part of any preventative maintenance program. This analysis will help identify the root cause of gearbox failures, as well as plan for future preventative maintenance. By properly planning preventative maintenance, you can avoid the expense and inconvenience of repairing or replacing a gearbox prematurely. You can even outsource gearbox maintenance to a company whose experts are knowledgeable in this field. The results of the analysis will help you create a more effective preventative maintenance program.
It is important to check the condition of the gearbox oil periodically. The oil should be changed according to its temperature and the hours of operation. The temperature is a significant determinant of the frequency of oil changes. Higher temperatures require more frequent changes, and the level of protection from moisture and water reduces by 75%. At elevated temperatures, the oil’s molecular structure breaks down more quickly, inhibiting the formation of a protective film.
Fortunately, the gear industry has developed innovative technologies and services that can help plant operators reduce their downtime and ensure optimal performance from their industrial gears. Here are 10 steps to ensure that your gearbox continues to serve its purpose. When you are preparing for maintenance, always keep in mind the following tips:
Regular vibration analysis is a vital part of gearbox maintenance. Increased vibration signals impending problems. Visually inspect the internal gears for signs of spiraling and pitting. You can use engineers’ blue to check the contact pattern of gear teeth. If there is a misalignment, bearings or housings are worn and need replacement. Also make sure the breathers remain clean. In dirty applications, this is more difficult to do.
Proper lubrication is another key factor in the life of gearboxes. Proper lubrication prevents failure. The oil must be free of foreign materials and have the proper amount of flow. Proper lubricant selection depends on the type of gear, reduction ratio, and input power. In addition to oil level, the lubricant must be regulated for the size and shape of gears. If not, the lubricant should be changed.
Lack of proper lubrication reduces the strength of other gears. Improper maintenance reduces the life of the transmission. Whether the transmission is overloaded or undersized, excessive vibration can damage the gear. If it is not properly lubricated, it can be damaged beyond repair. Then, the need for replacement gears may arise. However, it is not a time to waste a lot of money and time on repairs.

China 40kg Rc Servo CYS-S8218 with Iron Core and Metal Gear,Digital Waterproof Servo for 15 Rc Car     with Good quality China 40kg Rc Servo CYS-S8218 with Iron Core and Metal Gear,Digital Waterproof Servo for 15 Rc Car     with Good quality
editor by czh2023-02-15