Does the drive shaft have a long service life?

I saw a friend ask today, how often should the drive shaft be replaced? How long can it be used? Some friends said that the service life of the transmission shaft is generally one year, and some even only half a year. Due to the large instantaneous impact force of the transmission shaft, it is easy to cause damage. In addition, most of the power take-off drive shafts are remanufactured and have poor durability. Some friends said that the service life of the propeller shaft is calculated according to the mileage, and a propeller shaft can support the car to travel 300,000 kilometers; in fact, the service life of the propeller shaft is related to personal driving habits and maintenance.

First, the transmission shaft is not a wearing part, and generally can be divided into the following situations.

The front-drive drive shaft cannot be repaired, it can only be replaced. It needs to be replaced only when there is a collision or bending. If the ball cage is broken, it can be replaced separately.

The problems with RWD are mainly cross shaft and drive shaft hangers. This can be replaced individually.

It needs to be replaced when it collides, bends, or moves in bad balance on the drive shaft.

To use the drive shaft for a long time, it is necessary to pay attention to driving habits and daily maintenance. The following points should be noted.

1. It is strictly forbidden to use high-speed gears to start the car; suddenly lift the clutch pedal

2. Overloading and speeding are strictly prohibited

Always check the shape of the transmission shaft to see if there is any damage, otherwise it will easily affect the stroke.

Maintaining good personal driving habits and regular inspection and maintenance of the drive shaft will make it less likely to cause the drive shaft to break and prolong its life.

In order to ensure the normal operation of the transmission shaft and prolong its service life, attention should be paid during use: high-speed gear is strictly prohibited. Do not lift the clutch pedal violently. Prohibition of overloading cars. Speeding. The working condition of the transmission shaft should be checked frequently. Always check the fastening of the transmission shaft hanger, whether the supporting rubber is damaged, whether the connection parts of the transmission shaft are loose, and whether the transmission shaft is deformed. In order to ensure the dynamic balance of the transmission shaft, always pay attention to whether the soldering piece is desoldered. The new drive shaft assembly is provided as a set. When loading the new drive shaft, attention should be paid to the assembly mark of the telescopic sleeve to ensure that the flange fork is in one plane. When repairing and disassembling the transmission shaft, the assembly mark should be printed on the telescopic sleeve and the flange shaft to keep the original assembly relationship unchanged. .The cross bearing of the universal joint should be injected with grease frequently, and it should be injected with No. 3 lithium-based grease in summer, and it should be injected with No. 2 lithium-based grease in winter. Driveshaft inspections and warranties vary depending on how you drive your car. For rear-wheel drive vehicles, the drive shaft uses two unequal velocity universal joints. When the clutch starts to loosen, or rapid acceleration, or rapid deceleration, there is a clicking sound at the bottom of the vehicle, indicating that the non-uniform velocity universal joint needs to be replaced. Another way to check is to grab the drive shaft under the car and shake it from side to side. If the rotation angle exceeds 45 degrees, it means that the gap of the universal joint joint is too large, the speed is not constant, and maintenance is required.