Cotter Pin Vs Split Pin

The nut is sometimes referred to as a castle nut due to the 6 notches cut into the top.

Cotter pin vs split pin.

As nouns the difference between pin and cotter is that pin is a small device made usually of drawn out steel wire with one end sharpened and the other flattened or rounded into a head used for fastening while cotter is mechanical engineering a pin or wedge inserted through a slot to hold machine parts together or cotter can be a peasant who performed labour in exchange for the right to. Bend prongs outward to secure. The nominal length l is with tolerance js17. Also known as split pins these have one prong slightly longer than the other so they re easy to open.

A split pin also known in the united states as a cotter pin or cotter key is a metal fastener with two tines that are bent during installation similar to a staple or rivet typically made of thick wire with a half circular cross section split pins come in multiple sizes and types. Pins are widely used within manufacturing machinery and other plants especially to fix collars and pulleys to shafts. Cotter pins include the well known hair pin cotters as well as our unique inventions. The british definition of cotter pin is equivalent to u s.

Bow tie locking cotters rue ring locking cotters and infinity s hooks. A cotter pin is made from mild steel and is used to prevent a nut from rotating out of position. Bow tie cotter pins. Didn t realise that if it is not fitted properly here in the uk you could possibly fail your.

Threaded clevis pins have a partially threaded shank on one end and a formed head on the other. This is just a quick video to show the way to fit a cotter pin. A cotter pin usa usage or split pin is used to keep the clevis pin in place. There is a confusing array of choices such as dowels grooved pins spiral pins coil pins and cotters.

Two step locking prevents accidental removal. These pins lock in place until you push the button to release the spring loaded retaining balls and can also be secured with a cotter pin for longer term holding. A number of rings are available to suit different applications in both steel zinc plated and stainless steel. For the split pin hole tolerance h13 is recommended for d nom 1 2 mm and tolerance h14 for d nom 1 6 mm and above.

The formed head has a lip which acts as a stop when threading the pin into the shackle and a flattened tab with a cross hole. Shape of the split pin ends at the manufacturer s discretion. The nut is torqued onto the stud and then turned slightly u.