When many car owners purchase trailer axles, one parameter they are often asked about is the wheelbase. Just like choosing clothes depends on the size, the wheelbase also determines whether the axle can match the vehicle.Generally speaking, under the same load-bearing tonnage, there are often axles with different wheelbases. How can car owners measure to get the accurate wheelbase value?The wheelbase refers to the distance between the center lines of the tracks left by the wheels on the vehicle support plane. You can make an intuitive judgment through the following figure:
So, if the vehicle has a dual-tire structure on both sides, the wheelbase is the distance between the center planes of the two wheels on one side.It should be noted that the wheelbase is not the same parameter as the wheelbase. The wheelbase refers to the distance from the center of the front axle to the center of the rear axle of the vehicle. Simply put, it is the distance between the front and rear axles of the vehicle, which is related to the length of the vehicle turntable. Car owners should not confuse it with the wheelbase.Next, let's talk about several common trailer rear axles on the market and their main features. Car owners can choose according to their own working conditions.1. American axles
American axles are the most widely used in China. The most obvious advantages are strong load-bearing capacity, durability, relatively low price, and high cost performance. In addition, the design is simple, maintenance is relatively convenient, and all kinds of accessories are common in the industry, easy to buy and match, and can be used in all kinds of general cargo transportation, such as sand and gravel, steel coils, wood, coal and other heavy goods transportation.2. German axles
The characteristics of German axles are long-lasting, stable and lightweight. On the one hand, they save fuel and tires, which can reduce the overall vehicle cost. On the other hand, the maintenance cycle is long and the heat dissipation efficiency is better. It is suitable for transportation conditions with certain requirements for transportation timeliness and vehicle attendance rate, especially for long-distance standard load transportation, such as drop-and-hook, port, cold chain, green channel, express delivery, etc.3. Low-bed axle
Low-bed axle is a special axle used on low-bed semi-trailers. According to regulations, low-bed semi-trailers mainly transport large goods that cannot be disassembled. Therefore, its axle needs to meet the requirements of strong load-bearing, stable transportation, and convenient cargo loading and unloading. The most obvious characteristics of low-bed axles are small wheel ends, low height, low center of gravity, and relatively higher wall thickness parameters. It is suitable for transporting various large goods, such as mechanical equipment, large tanks, construction equipment, power station equipment, etc.4. Eccentric axle
Eccentric axles and low-bed axles have the same purpose in pursuing a low center of gravity. The difference is that the axle beam of the eccentric axle has been specially treated, which can further reduce the chassis height of the frame. It is mainly used on some car transporters, so that it can obtain more loading space without exceeding the height. At the same time, it can reduce the turning radius, improve the grip of the tires, and facilitate speed increase in stable transportation and loading and unloading. It is also more convenient.5. Disc axle
The advantages of disc axle are mainly reflected in sensitive braking, resistance to heat and water attenuation, stable braking force output, lightweight, etc., especially when used with ABS, EBS, hydraulic retarder, air suspension and other devices, the advantages of disc axle can often be brought into play to a greater extent. In addition to the three-axle plate-bar semi-trailer required by regulations, those transportation conditions with high requirements for cargo damage, such as hazardous chemicals, precision instruments, fragile items, valuables, flowers, fruits and vegetables, etc. can choose disc axles.
6. Light trailer axle
The light trailer axle is mainly for the rear axle of the trailer, such as 3t, 5t, 6t, 8t, etc. It is characterized by small tonnage and more flexible installation and use. It is mainly used in various industrial trailers, agricultural trailers, field operation trailers, station trailers, trailer RVs, and livestock trailers. Specifications and parameters including parts can be customized.
7. Three-lane six-axle axle
Three-lane six-axle axle is mainly used for large or extra-large cargo transportation. This type of cargo is large in size and weight and generally cannot be disassembled. Large or special vehicles are required for transportation. The three-lane six-axle axle is specially customized for large cargo transportation vehicles. It can carry up to 80 tons and has a large number of tires, which reduces the average pressure on the contact surface and reduces damage to the tires and the road surface.
