Spindle (automobile)

This article needs additional citations for verification. Please help by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources:  –  ·  ·  · scholar · JSTOR (June 2018) (Learn how and when to remove this template message)

Spindles or uprights - Jaguar left and Holden Gemini right

The wheel spindle in the illustration is colored red

In an automobile, the wheel spindle, sometimes simply called the spindle, is a part of the suspension system that carries the hub for the wheel and attaches to the upper and lower control arms.

Spindles are carried by steering knuckles or "uprights".^[1] Although, the terms "steering knuckle" and "upright are sometimes used interchangeably with "spindle", they refer to different parts.^[2]

Design[]

There are several considerations when designing a spindle. Loads and forces need to be considered. Vertical and horizontal forces greater than those due to 5 times the acceleration of gravity, that is, approximately 50 meters per second squared, are sometimes considered desirable.^{[citation needed]}

Non-driven wheel[]

The main forces on a non-driven wheel are braking and turning forces.

Driven wheel[]

The forces on a driven wheel include forward and reverse propulsion as well as the braking and turning forces.

See also[]

• Front axle assembly
• Pintle

References[]

• List of Spindles/Uprights available in Australia suitable for Race, Modified and Individuality Constructed Vehicles

This article about an automotive part or component is a stub. You can help Wikipedia by .

• v
• t