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Trailing arm suspension

Name: Trailing arm suspension dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What is trailing arm suspension? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: trailing arm, rear trailing arm, trailing link, trailing arm geometry, swing arm suspension, trailing arm camber, independent rear suspension trailing arm

Exact dimensions. True size, with no printing tolerance added.

sizes: 3 in table

Notes

A trailing arm pivots on the body at its front and carries the wheel at its rear, so the wheel moves on an arc about a lateral pivot (FIRGELLI). Camber does not change with bump but does with body roll, tilting both wheels and causing understeer (AutoZine).
FIRGELLI's example: a 450 mm arm rising 150 mm rotates 19.5 deg and pulls the wheel back 25.7 mm.

Trailing arm suspension size chart

parameter	value or range	source
Example arm / travel	L 450 mm, dz 150 mm	FIRGELLI
Horizontal recession	~25.7 mm	FIRGELLI
Arm rotation	~19.5 deg	FIRGELLI

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

FIRGELLI Automations	Trailing arm suspension mechanism explained	web	Publisher's page; dimensions are facts
AutoZine Technical School	Suspension: trailing arm, semi-trailing arm, torsion beam, multi-link	web	Publisher's page; dimensions are facts

Xem scan

File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

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Plain text: sheet.txt · JSON: /api/geometry?object=trailing-arm

Schematic, not to scale.