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keys and splines on shafts Question
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Posted by: bobthedog

01/13/2007, 10:10:30

Simply put what does a key do on a shaft what is its purpose? What does a spline do and what its purpose thanks.

What does a reversable load mean





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Re: keys and splines on shafts
Re: keys and splines on shafts -- bobthedog Post Reply Top of thread Forum
Posted by: traingdt

01/14/2007, 09:59:53

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A key is a feature that assembles with a keyway (or slot) on a cylindrical feature (shaft) to prevent rotation. A spline is a series of grooves cut along the length of a shaft (usually for a short length of the shaft). The spline assembles with "internal" splines on a mating hole, and the spline allows torque power to be transferred between the two components.
So a spline is similar in function to a key, but for a different reason: the spline is stronger and transfers torque (I guess the key can transfer torque too, but a significant load might break it.)







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Re: Re: keys and splines on shafts
Re: Re: keys and splines on shafts -- traingdt Post Reply Top of thread Forum
Posted by: randykimball
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01/14/2007, 23:20:32

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.... and a key difference is that a spline is more often used when the male and female protions slide back and forth.. for example on the telescoping portions of a drive shaft.




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