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Plastic Gearbox Assembly

Plastic Gearbox Assembly
Plastic Gearbox Assembly

Plastic Gearbox Assembly

Plastic Components for Automotive Seat Motors

 

These precision injection-molded parts are designed for automotive seat adjustment motors. The complete set supports the DC motors used for forward/backward and height adjustments, serving as critical structural plastic components within the vehicle body actuation system.

 

This series consists of engineering plastic components specifically designed for automotive seat motors. They are injection-molded using automotive-grade modified plastics, such as glass fiber-reinforced nylon (PA66-GF). The set includes various functional structural parts—such as motor housing brackets, limit clips, vibration-dampening pads, and positioning sliders—which are assembled with the DC motor and lead screw to form the seat adjustment actuator, enabling seat lifting and sliding movements. All parts meet automotive industry standards for temperature resistance, creep resistance, impact resistance, and aging resistance.

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Key Components and Functions

1. Motor Bracket Housing (Two large, black semi-circular parts)

Serves as the mounting base for the motor; it encloses, positions, and supports the motor body while facilitating attachment to the vehicle's sheet metal structure. Features integrated clips and positioning posts to ensure coaxial alignment during assembly and to dissipate operational vibrations.

 

2. Vibration-Dampening Pad (Square part with a hole)

Absorbs vibration and noise generated during motor operation, eliminates assembly clearances, improves the smoothness of seat adjustment, and suppresses unwanted noises.

 

3. Limit Clip/Stop (Slender black part)

A travel-limiting structure that restricts the movement range of the lead screw, preventing over-travel or dislocation during seat adjustment and providing mechanical protection.

 

4. Lead Screw Gearbox Housing (Black housing above the motor)

Houses internal plastic gears and the worm gear reduction mechanism; converts the motor's high-speed rotation into linear push-pull movement of the lead screw to drive seat displacement.

Product Advantages

1. Automotive-Grade Materials: Glass fiber-reinforced modified engineering plastics; resistant to high and low temperatures and creep; dimensionally stable under long-term loads; suitable for in-vehicle environments ranging from -40°C to 125°C.

 

2. Integrated Complex Structures: One-piece injection molding integrates clips, positioning posts, and mounting holes, thereby reducing assembly steps.

 

3. Vibration and Noise Reduction: The structural design absorbs motor vibrations and minimizes abnormal noise during seat adjustment, thereby enhancing the vehicle's overall NVH (Noise, Vibration, and Harshness) performance.

 

4. High Reliability: Designed to withstand tens of thousands of adjustment cycles (fatigue life) with stable dimensional accuracy, making the components suitable for high-volume automated assembly.

Application Areas

• Automotive Sector: Motor actuators for passenger vehicle seat height adjustment and fore-aft sliding; adaptable for other body motor modules such as those for windows, rearview mirrors, and headlight adjustments.

 

• Extended Applications: Mounting brackets, limiters, and vibration-damping structural components for various DC gear motors used in home appliances and micro-actuators for construction machinery.

 

These precision injection-molded components for automotive seat motors are manufactured using automotive-grade glass-fiber reinforced engineering plastics. The product range includes motor brackets, damping elements, and travel-limit clips. Designed to complement seat lead-screw actuators for seat adjustment, these components offer excellent temperature and creep resistance, vibration and noise reduction, and long fatigue life, making them suitable for a wide range of passenger vehicles.

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If you have any questions about products, technical support, after-sales service, etc., Please feel free to contact us at any time.

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