Eye End Internal Thread Tube For Automobile Seat Adjustment

Core Features

Eye End Termination – The component terminates in a ring-shaped eye end that provides a pivot interface for attachment to mating linkage components. The eye end accommodates pins or bolts for articulated connections in the seat adjustment mechanism.

Internal Threaded Bore – The tube body features internal threads along its length that engage with threaded rods or adjustment hardware. The threaded interface enables length adjustment by rotating the component relative to the mating threaded element.

Torque Transmission Function – The tube functions as a torque transmission element in the seat adjustment system, transferring rotational force from the actuator to the seat positioning mechanisms .

Adjustment Capability – The internal thread configuration allows for fine adjustment of the component's effective length, enabling precise positioning of seat components during assembly or service. Turning the tubing changes the overall length of the strut or linkage .

Product Characteristics

The component is manufactured with a tubular body and an eye end termination at one or both ends. The eye end provides a bearing surface for pivot connections, typically accommodating a pin or bolt for attachment to linkage components. The internal thread extends along the bore with dimensions and tolerances following standard metric or unified thread profiles.

The tube body serves as the primary load-bearing element, transferring forces between the seat structure and the adjustment mechanism. The dual thread design allows for length adjustment without disassembly . Material composition is controlled to meet specified strength requirements. Carbon steel grades are available for general automotive applications, with material selection affecting torque capacity and structural integrity. Surface treatment options include zinc plating with various chromate finishes, phosphate coating, and other finishes based on corrosion resistance requirements for automotive interior applications.

Application Scenarios

Automotive Seat Adjustment Linkages – Used in vehicle seat positioning systems where the tube connects seat components to adjustment mechanisms. The tube transfers torque from the actuator to the seat structure, enabling seat fore-aft or vertical adjustment .

Manual and Power Seat Systems – Applied in both manual and powered seat adjustment configurations. In manual systems, the tube interfaces with mechanical adjustment mechanisms. In power systems, the tube connects to electric motor-driven adjusters.

Transmission Cable Adjustment – Employed in cable adjuster assemblies for vehicle transmission systems where the eye end interfaces with cable connections and internal threads provide length adjustment capability.

Replacement and Service Applications – Used as OEM replacement components in vehicle service and repair applications requiring precise length adjustment for seat positioning.

Customization Options

Specifications and configurations can be adjusted based on application requirements. Eye end diameter and geometry, tube outer diameter, thread size, and overall length are customizable. Material grades include carbon steel for general applications and stainless steel for corrosion-resistant requirements. Surface treatments are selectable according to environmental exposure conditions.

Frequently Asked Questions

Q: What is the purpose of the eye end on this tube?
A: The eye end provides a pivot interface for attachment to mating linkage components through a pin or bolt connection, supporting the articulation required in seat adjustment mechanisms.

Q: How does the internal thread enable seat adjustment?
A: The internal threads engage with a threaded rod or adjustment hardware. Rotating the tube relative to the threaded component changes the effective length of the assembly, enabling precise positioning of seat components.

Q: What is the torque transmission function of this component?
A: The tube functions as a torque tube that transfers rotational force from the actuator (manual or powered) to the seat positioning linkages, enabling seat movement in the adjustment system .

Q: Are these tubes suitable for use in both manual and power seat systems?
A: Yes. The tube is compatible with both manual adjustment mechanisms and power seat systems where electric motors drive the positioning linkages.

Q: What is the recommended length adjustment method for these tubes?
A: Length adjustment is achieved by rotating the tube on the threaded engagement. The internal thread configuration allows for adjustment without disassembly of the linkage.

Installation Considerations

The component should be installed with the eye end aligned to the mating pivot connection. The internal thread should engage with the corresponding threaded rod or adjustment hardware. Torque should be applied according to specified tightening procedures for the thread size and application. The tube should be positioned to provide proper alignment in the seat adjustment linkage. Thread condition should be inspected before installation; damaged threads may affect adjustment capability and assembly integrity. For plated or coated tubes, coating thickness should be within specified tolerances to maintain thread fit. When used in seat adjustment systems, the tube provides torque transmission and adjustment capability consistent with the original equipment specifications.