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The main gearbox is the main component in the drive train to reduce speed and increase torque, and also has the role of changing the direction of torque rotation when the engine is longitudinal. It relies on a gear with a small number of teeth to carry a gear with a large number of teeth to achieve the reduction, while the bevel gear transmission can change the direction of torque rotation. The main reducer is arranged in a position before the power is diverted to the drive wheel, which helps to reduce the torque transmitted by the drive components in front of it (such as clutch, transmission, drive shaft, etc.), thus reducing the
size and mass of these components.
The presence of the main gearbox serves two purposes, the first is to change the direction of power transmission and the second is to act as an extension of the transmission to provide a common ratio for the various gears. The output of the transmission is a torque that rotates around the longitudinal axis, whereas the wheels must rotate around the vehicle's transverse axis, which requires a device to change the direction of power transmission. The reason it is called a master gearbox is that the ratio of this device is a factor of the total transmission ratio, regardless of what gear the transmission is in. With this ratio, the
requirement for the reduction capacity of the transmission can be effectively reduced. The advantage of this design is that the size of the transmission can be effectively reduced, making the overall arrangement of the vehicle more rational.
The main function of the main gearbox is to reduce the speed and increase the torque. We know that the engine output power is certain, according to the power formula W=M*v (power=torque*speed), when the transmission speed is reduced through the main reducer, it can obtain a relatively high output torque, so as to get a larger driving force. In addition, the main gearbox of the car has the function of changing the direction of power output, realising the differential speed of the left and right wheels or the differential speed of the middle and rear axles.
During 10 years, Carman products sold to many countries and regions, serve tens of thousands machinery and trucks, good quality is our core-competitiveness. We sincerely welcome all of you come to visit our company and discuss cooperation matters.
1. Our packing uses export wooden cases, plastic boxes, cartons or pallets. All the package are very strong, the wooden box is firmly bound, the package is covered with a waterproof film to prevent water or damage during transportation.Before packing, we can also stick corresponding labels and shipping marks according to your needs. All our goods are well packed.
2. According to the quantity, we can use express delivery, air transportation or ocean transportation, automobile transportation, railway transportation, etc. we have our own freight forwarders, and we can also use the designated freight forwarders of customers, which can meet various delivery requirements of customers, such as EXW, FOB, CIF, etc.It can also be exported from many ports in China. Such as Qingdao port, Ningbo port, Lianyungang port, Tianjin port, Suifenhe River and Alashankou in China.
3. We can also send the goods by express if the customers have less goods. According to customer's request, we can use express.such as DHL, TNT, EMS, FedEx, etc. the delivery time is 3-7. Safe, fast and convenient. It's also a good choice for you.
Jinan Carman International Trade Co., Ltd. was established in 2013. Its main business is the export of truck parts to the Russian,Europe and Southeast Asia market.like shacman ,sinoturk ,faw weichai cummins ZF ,cummins XCMG LGMG JCB .DCEC,isuzu caterpiller .komatsu yanmar spare parts .The company has its own warehouse in Jinan with an area of 2000 square meters.and have a large stock .And Ability to quickly collect and deliver goods.Our main business is SINOTRUK, shacman , FAW, Cummins and all kinds of construction machinery accessories. We always adhere to the quality of products as the core, to serve customers as the task.Hope to be able to better communicate with friends from all over the world, and through this communication, promote the development of cultural exchanges and economic exchanges between the two sides.
1. who are we?
We are based in Shandong, China, start from 2013,sell to Eastern Asia(75.00%),Northern Europe(11.00%),Africa(4.00%),Southern Europe(3.00%),South Asia(2.00%),Southeast Asia(2.00%),Western Europe(2.00%),North America(1.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Auto parts,Truck parts,Engine parts,Parts for Cummins,Parts for XCMG.
4. why should you buy from us not from other suppliers?
Jinan Carman International Trade Co., Ltd. is located in Jinan city, the capital of Shandong Province. Main products are heavy truck accessories, light truck parts, engineering machinery parts and so on. We have perfect service system.
5. what services can we provide?
Accepted Delivery Terms: 3-5 days
Accepted Payment Currency:T/T
Accepted Payment Type: T/T
Language Spoken:ENGLISH
