wrist pin

American  

noun

Machinery.

1. a pin joining the end of a connecting rod to a trunk piston or the end of a piston rod.

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wrist pin British  

noun

1. a cylindrical boss or pin attached to the side of a wheel parallel with the axis, esp one forming a bearing for a crank

2. Also called (esp in Britain): gudgeon pin. the pin through the skirt of a piston in an internal-combustion engine, to which the little end of the connecting rod is attached

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Etymology

Origin of wrist pin

First recorded in 1870–75

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Example Sentences

See Examples For:

wrist pin

The wrist pin is provided with a hole of sufficient size to receive the plunger, which is kept in place by means of a spring in back of it.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

This consisted of driving a taper pin through both rod and wrist pin and then preventing it from backing out by putting a split cotter through the small end of the tapered locking pin.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

Some engineers think it advisable to oscillate the wrist pin in the piston bosses, instead of in the connecting rod small end.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

Screw on rod is where oil is poured into connecting rod to lubricate wrist pin and crankshaft.

From The 1893 Duryea Automobile In the Museum of History and Technology by Donald H. Berkebile

It is argued that this construction gives more bearing surface at the wrist pin and also provides for more strength because of the longer bosses that can be used.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

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