The transmission mount on a car is a key part in the automotive gearbox system. It connects the gearbox to the vehicle frame/subframe. It is usually made of metal and elastic materials (such as rubber, hydraulic material or polyurethane). The main purpose of the transmission mount is supporting the gearbox and reduce the transmission of vibration. The following is a detailed analysis of transmission mount:
Main functions of a transmission mount:
Supporting: It fixes the gearbox and bears its weight and dynamic loads (such as loads generated during acceleration, braking, and turning).
Vibration reduction and isolation: It isolates vibration and noise during the operation of the gearbox to improve riding comfort.
Displacement compensation: It allows for slight displacements of the gearbox caused by thermal expansion or vehicle movement, and avoids concentration of stress.
Common symptoms of a failed transmission mount:
Rubber aging (cracking, hardening) and metal corrosion/fracture.
The symptoms include abnormal vibration, abnormal noise during gear-shifting, and unstable support.
Suggestions for maintenance of a transmission mount:
Check the suspension status regularly, especially for vehicles with high mileage.
During replacement, correct the position of the mount to avoid misalignment. Follow specified torques and use specialized tools.
Replacement precautions:
Key operation points: After the vehicle is lifted, remove the old suspension. Ensure accurate alignment during installation to avoid distortion.
