Polytechnic · Technical Drawing · Interactive drawing lesson

Serrated shafts (external)

Fine serrations round a shaft. Learn serrated shafts (external) step by step in an interactive Polytechnic technical drawing lesson.

What you will learn

This guided practical demonstrates the construction on a drawing board and explains the method in a clear sequence.

Open the interactive drawing lesson

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• Shafts — Stepped shaft with chamfer and keyway.
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• Tension springs — Closed coils with end loops.
• Splined shafts (external) — Splines on the outside of a shaft.
• Splined shafts (internal) — Splines cut inside a bore.
• Serrated shafts (external) — Fine serrations round a shaft.
• Serrated shafts (internal) — Serrations inside a clamped boss.
• Functional dimensioning — Dimension the sizes that make it work.
• Non-functional dimensioning — Size the rest of the part.
• Auxiliary dimensioning — Reference sizes shown in brackets.
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