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Views: 0 Author: Site Editor Publish Time: 2025-03-30 Origin: Site
Lead screws are important parts in machines.They help turn rotary motion into linear motion.Lead screw pitch affects how tightly the threads are spaced.A smaller pitch means more threads per inch,which can provide more strength.Screw lead determines how fast the leadscrew moves.A larger lead means the nut moves faster with each turn.Understanding these terms helps you choose the right lead screw for your machine.
Pitch is the distance between two adjacent threads on a lead screw.The lead is the distance the nut travels when the lead screw is rotated one revolution.
For a single-start leadscrew, the lead and pitch are the same.Example: If the pitch is 2 mm, the lead is also 2 mm.
For a multi-start screw,the lead is greater than the pitch.Example: If the pitch is 2 mm and the lead screw has 2 starts,the lead is 4 mm.
Key Points: Single-start screw: Lead = Pitch. Multi-start screw: Lead = Pitch × Number of starts.
Let’s say you have a lead screw with:Pitch = 5 mm.Number of starts = 2. Then: Lead = 5 mm × 2 = 10 mm. This means the nut moves 10 mm in one full turn.
