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1. This is due to the stress concentration at the corners of the key way and reduction in the cross-sectional area of the shaft. It, other words the torsional strength of the shaft is reduced.
2. In case the key way is too long and the key is of sliding type, then the angle of twist increased.
So it is actually assumed that the strength of the keyed shaft is 75% of the solid shaft.
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∙ 12y ago
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What is a keyed shaft?
A keyed shaft or Keyway is method, based on a machined keyway in shaft, to attach something to the shaft and associated bore. A fitted key is inserted into a slot that is machined into the shaft. Although a machined keyway does result in a weaker shaft, it has it's applications. As in a lawn mower engine shaft. Theoretically the key will give way and save the shaft if you hit something with the blade. The negatives of a keyed shaft are that it can be deformed over time and result is a loose drive.
What would hitting a tree stump do to a push lawn mower?
a gas mower i take it, you can bend the shaft, shear the keyway, and twist the shaft,
Why does a lawnmower rebound back while trying to start it?
generally when a pull rope jerks back when pulling it is a sign that you have a sheared flywheel key. remove the screen off the top of the flywheel and look to see if the keyway on the flywheel is offset to the keyway on the shaft
Installing a pulley and shaft with a square key for a band saw repair. Previous owner deformed the keyway and I'm having trouble getting the pulley back on the shaft with the key installed.?
http://answers.yahoo.com/question/index?qid=20071023141955AAIY1FP
When was Keyway Air Transport created?
Keyway Air Transport was created in 1986.
What is the purpose of a keyway in a slab on grade?
The purpose of a keyway is to stop the movement of the foundation.
What is the shaft size on a Briggs and stratton 28m707 motor?
Unless the type # is off the wall strange, it has a 1" diameter shaft, 1/4" keyway, the end is tapped to thread size 7/16 - 20, and length from mount to tip is 3 and 5/32".
Is the stx katana lacrosse shaft better or the maverick Phoenix lacrosse shaft?
The maverick phoenix is the better shaft it has the hights strength to weight ratio and has an amazing grip
Is the keyway on a small block Chevy at 0 degrees?
This is a good question. Yes, the keyway, is accurate. What is not, is the balancer. After 74, the balancer keyway is offset, from the timing mark. Any harmonic balancer you use, look to see where the keyway is, compared to the hash mark on it. Make sure they line up.
Science fair do heating and cooling effect the strength of glass?
No, heating and cooling does not effect the strength of a glass
Why do you need a keyway in the construction of a wall?
typically, a keyway is found in a wall made of concrete where there is two separate pours which abut themselves, otherwise referred to as a cold joint. it makes sense to insert a concave keyway continously along the length and in the center of a section of the first wall section poured to receive an abutting concrete pour at a later date. this inserted keyway creates an interlocking style effect between the two abutting pours which creates a higher quality connection than simply butting the two pours with nothing to interconnect them. typically, a keyway is found in a wall made of concrete where there is two separate pours which abut themselves, otherwise referred to as a cold joint. it makes sense to insert a concave keyway continously along the length and in the center of a section of the first wall section poured to receive an abutting concrete pour at a later date. this inserted keyway creates an interlocking style effect between the two abutting pours which creates a higher quality connection than simply butting the two pours with nothing to interconnect them.
Where was the keyway invented?
in Glasgow i think
