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Difference between Involute Gear and Involute Spline

Difference between Involute Gear and Involute Spline

Difference between Involute Gear and Involute Spline

(OP)
Hi,

Can anyone tell me the difference between Involute Gear and Involute Spline. I searched lot but no result found.
Also any document could be helpfull.

Thanks

Bambila
Mechanical Engineer

RE: Difference between Involute Gear and Involute Spline

IRstuff, I think that would be a helical gear, but maybe I don't understand what you are saying.

I would put the difference at size and use. If I had to put a hard definition on it, I would say a gear has a face width less than the pitch diameter and is intended to contact a rack or another gear using a portion of the teeth. A spline has a face width greater than or equal to the pitch diameter and is intended to contact another spline of the opposite gender using most, if not all, of the teeth.

RE: Difference between Involute Gear and Involute Spline

Splines are for transferring rotational motion along the same axis.

"Involute" is a curve shape, basically what you get when you unwind a string from a spool and trace the path of the string's end. This shape has useful properties for transferring motion.

RE: Difference between Involute Gear and Involute Spline

The spline involute is the same as a gear. Splines generally are double stubbed as to addendums and dedendums. The addendum of a spline in about .5/DP and the dedendum roughly .625/DP while a gear would have 1.00/DP and 1.25/DP addendum and dedendum.

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