Cotter Pin Vs Split Pin

Bend prongs outward to secure.

Cotter pin vs split pin.

Threaded clevis pins have a partially threaded shank on one end and a formed head on the other. Cotter pins include the well known hair pin cotters as well as our unique inventions. Two step locking prevents accidental removal. 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.

A cotter pin usa usage or split pin is used to keep the clevis pin in place. Pins are widely used within manufacturing machinery and other plants especially to fix collars and pulleys to shafts. 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.

Also known as split pins these have one prong slightly longer than the other so they re easy to open. 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. Didn t realise that if it is not fitted properly here in the uk you could possibly fail your. A number of rings are available to suit different applications in both steel zinc plated and stainless steel.

The nut is sometimes referred to as a castle nut due to the 6 notches cut into the top. A selection of pins from left to right dowel pin slotted pin spiral pin split pin r clip cotter and grooved pin. 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. This is just a quick video to show the way to fit a cotter pin.

Bow tie locking cotters rue ring locking cotters and infinity s hooks. The nominal length l is with tolerance js17. The nut is torqued onto the stud and then turned slightly u. There is a confusing array of choices such as dowels grooved pins spiral pins coil pins and cotters.

An extra loop locks these cotter pins more securely than other pins so they can t vibrate out or be knocked off. 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. Bow tie cotter pins.