What is the advantage of a Woodruff key?

The main advantage of Woodruff keys is the elimination of milling near the shaft shoulders, where stress concentrations and concentrations would be affected. A more precise fit of the key and keyway also reduces play and stress concentrations and improves the reliability of the key.

What is the purpose of the flywheel Woodruff key?

Woodruff Keys are used for locking gears and pulleys to shafts. On the shaft, they fit into a keyseat, which is a circular pocket that retains the key. An exposed portion of the key fits into a rectangular groove, often called the keyway, in the gear or pulley.

What is Kennedy key?

The Kennedy key consists of two square keys. The hub is bored off the centre and the two keys force the hub and the shaft to a concentric position. Kennedy key is used for heavy duty applications.

Why is it called a Woodruff key?

ETYMOLOGY OF THE WORD WOODRUFF KEY Named after the Woodruff Manufacturing Co, in Hartford, Connecticut, who first manufactured it in 1892.

What is a shaft key?

A Shaft key is a piece of metal used to connect a rotating machine element to the shaft. A shaft key prevents a relative rotation between the two parts, and may enable torque transmission to occur.

How do I get rid of the Half Moon key?

Try tapping down on one end of the key with a hammer and nail. Another option is to drill into the center of the key and remove it with a nail. Rapidly heating the key with a blowtorch and letting it cool can help loosen it.

Can a crankshaft be welded?

Before the welding process, the crankshaft surfaces to be welded are lightly ground to remove any foreign materials, like bearing material, embedded in the crank. The bearing material you see embedded in the crank will be machined away prior to welding as it will contaminate the welding process.

What is a feather key?

Definition of feather key in machinery. : a sunk key without taper that is permanently fixed in one of the connected pieces and that is a sliding fit in a keyway in the other so as to permit relative longitudinal motion. — called also spline.

How does a crankshaft work?

The crankshaft works on the crank mechanism. It is located inside the block of the engine. The crank includes in the moving components of the IC engine. It has many crankpins and cranks. The engine connecting rod attaches with the crank through these crankpins and cranks.

What is the function of the crankshaft position sensor?

The ECU uses that info, along with inputs from other sensors, to control systems like ignition timing and fuel injection. This keeps all the parts of the engine well timed and working in concert. The crankshaft position sensor is essential to a smooth-operating engine.

What is the purpose of a crankshaft counterweight?

Counterweights are cast as part of the crankshaft to balance out these forces. These counterweights allow for a smoother running engine and higher RPM. A crankshaft will be balanced at the factory.

What to do if your crankshaft is damaged?

In some cases, gouges or scratches in the journals can be resurfaced and larger bearings installed, compensating for the material removed from the crankshaft. If the damage can’t be corrected completely, a new crankshaft will need to be installed or you risk another failure soon after.