Uncovering the Mystery of the Triumph Herald's Steering Tie Rod

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Discussion Overview

The discussion revolves around the identification and terminology of components related to the steering tie rod of the Triumph Herald. Participants explore the definitions and functions of various parts, including the stub axle and kingpin, within the context of automotive mechanics.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants assert that the term "stub axle" or "wheel spindle" is appropriate for a specific component, while others clarify that the tie rod is responsible for transmitting turning torque from the steering box.
  • One participant describes the horizontal part with wheel bearings as the stub axle and the near vertical part with steering bearings as the kingpin, noting that in some contexts, these components may be referred to collectively.
  • Another participant suggests that the piece functioning as a kingpin can also be called the Vertical Link, referencing a parts list for the Triumph Herald.
  • There is a proposal that the term "stub axle" accurately describes the broken part, emphasizing the distinction between the stub axle and the tie rod, which is identified as a thinner, horizontal rod.
  • A personal anecdote is shared regarding the Triumph Herald, highlighting its uniqueness in the US market.

Areas of Agreement / Disagreement

Participants exhibit some agreement on the terminology of the stub axle and tie rod, but there is disagreement regarding the precise definitions and roles of the components involved, indicating that multiple views remain unresolved.

Contextual Notes

Participants reference specific automotive terminology and components, but there may be limitations in assumptions about the audience's familiarity with these terms and their applications in different contexts.

Who May Find This Useful

Individuals interested in automotive mechanics, particularly those focused on classic cars like the Triumph Herald, may find this discussion relevant.

Kajan thana
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TL;DR
Hi guys, this might be a silly question. I have attached a picture to this thread. Am I right to refer to the component ( shown with the red dash line ) as the steering tie rod? If not, what is the name for that rod?
Thank you
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No I would call that the "stub axle" or perhaps the wheel spindle. The tie rod is the thing that supplies the turning torque from the steering box.
 
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hutchphd said:
No I would call that the "stub axle" or perhaps the wheel spindle. The tie rod is the thing that supplies the turning torque from the steering box.
Thank you so much
 
The horizontal part with wheel bearings is the stub axle.
The near vertical part with steering bearings is the kingpin.
Since it is all one casting on a tractor it is called a “kingpin / stub axle”, or some similar combination.
 
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I believe the piece doing the job of a kingpin can also be called the Vertical Link (Triumph Herald suspension parts list).

But Stub axle describes perfectly the broken part. A wheel fits on an axle and the axle, in that case is just a 'stub' (short). You could have some fun, separating the two parts of that component in the photo. Heat, cold and steady force but no bashing if you can help it

The tie rod is the thinner, horizontal rod at top left of the photo.
 
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sophiecentaur said:
Triumph Herald
my wife's first car was a Herald. An oddity in the US.
 
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