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Base Tangent Calculation

Base Tangent Calculation

Base Tangent Calculation

(OP)
I'm looking for a graphical interpretation the the Base Tangent Calculation used for involute gears.  Can this method also be used for odd numbered sprockets in a belt drive?

RE: Base Tangent Calculation

Is the belt drive an involute system?

RE: Base Tangent Calculation

(OP)
No, it is not.  Which is why I don't think it will work, but I wanted to ask.  Also not understanding the calculation itself, I'm unsure.

RE: Base Tangent Calculation

DIN 3960 Art 2.7.2 and beyond. Toothed belt pulleys are usually "topped" by the hob; i.e. the major diameter is machined by the hob. Purveyors of such systems do not provide tooth geometry to facilitate such measurements. It is usually sufficient to verify the outeside/major diameter.

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