TECHNICAL KNOWLEDGE / 2015-05-07
Common rack types and application characteristics
Straight profiles, the standard 20° profile angle, equal pitch and the pitch line are fundamental rack geometry.
TECHNICAL KNOWLEDGE
Technical explanation
Because the rack profile is straight, pressure angle is equal at all points; the standard value is 20°.
Any line parallel to the addendum line has the same pitch and module.
The line where tooth thickness equals space width is the pitch line and the reference for rack dimensions.
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Product and engineering references
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