Stainless Commercial Detent Pin /Detent Pin/Synchronizer Part/ Key Unit In Heavy Duty Truck / Commercial Car Gearbox

Packaging & Delivery

Packaging Detail: standard package(carton, wooden pallet).
Shipping: Support Sea freight. Accept FOB, EXW, CIF

Where is this kind of Synchronizer slider/detent arrest/ key unit used?

Synchronizer slider used in the synchronizer part of a commercial vehicle transmission ‌. The synchronizer slider plays the role of pushing the synchronization ring (copper ring) into contact with the gear binding teeth at the initial stage of gear shifting and makes the copper ring rotate at a specific Angle through friction to complete gear shifting ‌

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The specific role of the synchronizer slider is to make the copper ring rotate through friction, so as to match the speed of the gear and the shaft and avoid the impact and noise when shifting. It ensures that during shifting, the coupling sleeve and the spline gear ring to be engaged do not contact until they are synchronized, thus avoiding the impact between the teeth ‌

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In commercial vehicles, the synchronizer is usually composed of a gear sleeve, slide block, lock block, gear ring, and other components, of which the gear ring is the core component, with the advantages of friction resistance, impact resistance, high strength, used to complete the shift operation.

Product Advantage

1. The price is cheap and cost-effective;

2. High-quality assurance with professional technical team support;

3. Improve the performance, reliability, and service life of the gearbox used.

Process Flow:

Shell stamping

Heat treatment

Cleaning inspection

Assembly riveting

On-line inspection

Final inspection and oiled packaging

Our testing equipment:

Inspecting the synchronizer slider of a car typically requires the following equipment and their functions:

1.  Micrometer: Used to measure the gap between the synchronizer slider and the sides of the synchronizer hub’s recess. The limit is 0.25 millimeters; if exceeded, the slider needs to be replaced.

2.  Dial Indicator (or Dial Gauge): Used to measure the swing of the synchronizer hub, i.e., the side clearance between the synchronizer hub and the shaft. The limit is 0.12 millimeters; if exceeded, the synchronizer hub should be replaced.

3.  Vise: Used to secure the shaft so that the synchronizer hub can be rotated and its swing measured during inspection.

4.  Visual Inspection Equipment: Used to inspect the dimensions and shape of the synchronizer slider to ensure it meets design specifications.

5.  Symmetry Degree Inspection Device: Used to check the symmetry of the synchronizer hub slider slot to ensure its precision and performance.

6.  Spring Force Gauge: Used to test the spring force of the synchronizer slider, which is crucial for ensuring the working performance of the synchronizer.

7.  Slider Thrust Inspection Device: Used to simulate the working conditions of the transmission gear shift, collecting data on the force applied to the synchronizer assembly slider and the resulting displacement, improving measurement efficiency.

These devices collectively ensure the performance and quality of the synchronizer slider, which is essential for the normal operation of the car’s transmission.

Equipment name: Imager (measurement size)

Equipment name Tensile testing machine (measuring shell strength)

Equipment name: Dynamometer (measuring spring force)

Equipment Name Height Gauge (Measurement Dimensions)

Equipment name Micrometer (measuring dimensions)

Experimental bench machine (for durability experiments)

Our main truck series

T-shape detent arrest has been used for Fast transmission.

‌Fast transmission is mainly used in heavy trucks and large buses ‌, especially in China's commercial vehicle market occupies an important position. Known for their high performance, reliability, and durability, Fast gearboxes are used in a wide range of driving conditions, including city streets, highways, and harsh terrains.

Fast Gearbox has a very high market share in China's heavy truck market, especially in the heavy truck market, with a market share of more than 80% ‌. Specific models include the Dongfeng Tianlong, Dongfeng Cummins, and Dongfeng Sokon series of trucks, which are equipped with a six-speed gearbox.

In addition, Fast Gearbox not only has a place in the domestic market but is also successfully exported to the United States, Europe, and other countries and regions, showing the strong strength of being made in China.

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Chairman Address:

Dear customers around the world:

As we look back on our journey, our hearts are filled with gratitude for your unwavering support. Across continents and cultures, you have placed your trust in our company, and for that, we are truly honored.

We have strived to bring you not only top-notch products but also exceptional service, regardless of the distance. Your satisfaction has always been our driving force and will continue to be so in the future.

In the days to come, we are committed to further enhancing our offerings, embracing innovation, and strengthening our global partnerships. We will break down barriers and reach new heights to serve you better, no matter where you are.

Thank you for being a part of our global family. We look forward to many more years of mutual success and prosperity.

Warm regards