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luglio 29, 2026
Why Must Some Shafts Be Plunge Ground? The Problem of Helical Lead Marks
When reviewing the drawing of a shaft designed to work with rotary shaft seals, it is not uncommon to find specifications such as Plunge Grinding, No Helical Lead, D = 0° ± 0.05°, or Dt [...]
A tiny symbol may seem insignificant. A decimal point instead of another notation, a slightly different way of writing an angle, and yet everything appears to mean exactly the same thing. But when it [...]
Spur and helical gears perform the same function: transmitting motion and torque from one shaft to another. At a superficial glance, the difference might seem limited to the angle of the teeth. Yet, [...]
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