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Lynch Pin

Lynch Pin is a type of shaft end pin used to secure rotating components such as wheels and gears. It is inserted into a shaft hole to prevent axial detachment of the component and relies on the interference fit between the steel pin body and the hole position to achieve mechanical locking. It is a basic safety component in mechanical equipment.
  • Lynch Pin

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Features of Lynch Pin

Locking Pins Wire Retainer Title:

Locking Pins Wire Retainer D shape & Round Lynch Pin


Trailer Lynch Pin Introduction:

Lynch Pin refers to a type of shaft end fixing pin, commonly in the form of a metal pin with a spring lock, which is inserted into the shaft hole and quickly fastened and disassembled through a locking mechanism (such as a spring ball); Commonly used for agricultural machinery wheel axles and trailer connection devices;


Lynch Pin mainstream materials:

Galvanized carbon steel: The substrate is made of carbon steel, and the surface is treated with galvanizing, which has basic rust prevention ability;

Conventional environments such as agricultural machinery and trailer fixation;


Stainless steel: made of 304/316 stainless steel material, with strong resistance to salt spray corrosion, no risk of coating peeling, and long service life;

High corrosion scenarios such as marine environments and chemical equipment;


Lock Pin Material:Stainless Steel,Carbon Steel

Surface Treatment:Zinc Plating,Colorful Zinc-Plated or Plaining,etc.

Pin Diameter:1/4”, 5/16", 3/8” and other standard sizes, supporting non-standard customization.


Core functions:

Mechanical anchoring: prevents displacement of rotating components through axial constraints, suitable for dynamic load scenarios;


Anti detachment mechanism: It can only be disassembled by actively applying external force, and its vibration resistance is better than that of ordinary pins;


Lynch-Pin-01


Diameter Dimensions-mm Weight
mm inch A H G
4.5 11/64 34 40 20
6 1/4 34 40 24
6 1/4 34 45 25
8 5/16 34 40 30
8 5/16 34 45 32
9 3/8 34 45 39
10 7/16 34 40 42
10 7/16 34 45 45
11 29/64 34 40 45
11 29/64 34 45 50


Application:

Heavy equipment transmission shaft fixation, mold guide column positioning, aircraft maintenance panel anchoring, rail vehicle wheelset locking, etc;


Lynch-Pin-02


Installation steps:

Maintain vertical alignment between the pin body and the axis of the hole, and gently push until the steel ball retracts (do not hammer or tilt insertion);

After hearing the "click" sound, manually pull and test to confirm the lock;


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