When the axial loads(Tensile/Compressive) will rise above the strength of specially designed socket , spigot and cotter. The failure may be of anyone component or together.
why what type of material is used?which are the manufacturing companies?what are its standard dimension?Cotter jointThese types of joints are used to connect the end of a rod or bar to a shaft. The end of the bar has a hole in it and it is called a lug. The hole carries a shaft. This shaft is locked in place by a smaller pin that passes through the side of the lug and partly or completely through the shaft itself. This locking pin is named a cotter, which sometimes is also applied to the whole joint.The obvious example is on a bicycle where both pedal bars are separately locked by a cotter pin, on their common driving shaft having the sprocket wheel.Steel is the most common material used for this application. There are no specific manufacturing companies who make only cotter pins, nor are there any dimensional standards by which they are designed.
A cotter joint is one that is used to hold parts that might turn, as in an axle or a drive shaft. For example, on a child's wagon, the axles have a hole in each outside end. This hole is for a cotter pin (it looks similar to a bobby pin for the hair), that helps to keep the wheel on while the wheel is turning.
Power output will increase. Beyond the critical speed, torsional failure may occur.
The failure of steel refers to its inability to withstand applied loads or stress, leading to structural collapse or deformation. This can occur due to various factors, including excessive loading, fatigue, corrosion, and poor manufacturing processes. Common modes of failure include brittle fracture, ductile failure, and fatigue crack propagation. Understanding these failure mechanisms is crucial for the design and maintenance of steel structures to ensure safety and reliability.
To easily start it in the hole.
Cotter Joint is used to transmit Axial Forces..... ie tensile force.
Clearances between the cotter and slots in the rod end and socket allows the driven cotter to draw together the two parts of the joint until the socket end comes in contact with the cotter on the rod end.
*joint between the piston rod and and the crosshead of the steam engine *joint between the slide spindle and the fork of the valve mechanism *joint between the piston rod and the tail
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install a cotter pin in the hole in the shaft of the ball joint
A cotted joint is usually wedge shaped and is generally used to coonect two rods rigidly.
Mainly used in pipeline and GRP and FRP installation. It reduces the risk of failure at the joints due to bad overlay connections on the joints. Also it allows for some angular tolerance.
rod tensile failure
Top ball joint is 60 ft.lbs., initial. Then tighten to align hole for cotter pin. Bottom ball joint is 94 ft.lbs., initial. Then tighten to align hole for cotter pin
A key is generally driven parallel to the shaft whereas a cotter is driven perpendicular to the shaft. A key is subjected to torsion whereas a cotter is subjected to tensile and compressive forces. A key resists shear over a longitudinal section whereas a cotter resists shear over two transverse sections. A key joint is used to transmit a positive drive b/w two rotating parts whereas a cotter joint is used to transmit axial pull or push b/w to rods and they DO NOT rotate.
A cotter joint is used to connect the piston rod with a cross-head...
why what type of material is used?which are the manufacturing companies?what are its standard dimension?Cotter jointThese types of joints are used to connect the end of a rod or bar to a shaft. The end of the bar has a hole in it and it is called a lug. The hole carries a shaft. This shaft is locked in place by a smaller pin that passes through the side of the lug and partly or completely through the shaft itself. This locking pin is named a cotter, which sometimes is also applied to the whole joint.The obvious example is on a bicycle where both pedal bars are separately locked by a cotter pin, on their common driving shaft having the sprocket wheel.Steel is the most common material used for this application. There are no specific manufacturing companies who make only cotter pins, nor are there any dimensional standards by which they are designed.