The purpose of the propeller shaft is to transmit the rotation energy of the propeller to the blades, which rotates in a clockwise motion. This type of arrangement is often known as the crankshaft in automobile and aircraft engines. In its simplest form, a propeller shaft is the cutting-edge portion of a propeller.
Pivoting of the propeller in any direction changes the orientation of the propeller. Changing this orientation is done by rotation of the propeller shaft.
A propeller shaft has a cutting edge, which bends or rips at a particular angle, where it is parallel to the rotation of the propeller. It is usually called the "shaft face", with an indication of where the face touches the propeller face and the end of the shaft is called the "shaft end".
The forward travel of the propeller shaft is called "up" travel. It's forward travel is the angle the shaft makes with the propeller face. It is called "down" travel when the shaft ends up against the propeller blade.
The purpose of the propeller shaft is to transmit the rotation energy of the propeller to the blades, which rotates in a clockwise motion. This type of arrangement is often known as the crankshaft in automobile and aircraft engines.
In its simplest form, a propeller shaft is the cutting-edge portion of a propeller. The shaft helps transmit the rotational energy of the blades from the propeller to the propeller shaft, where the blades are mounted on the shafts.
A propeller shank is a metal plate, usually made from steel, which is fitted between the top and bottom of the propeller shaft and then mounted in the propeller shaft. The shank is often fixed in place by the use of bolts or clamps.
The shaft end is the part of the shaft that separates from the propeller shaft. The top of the shaft end is called the "belly" of the shaft, while the bottom part is the bottom portion of the shaft.
The purpose of the propeller shank is to mate the inside diameter of the propeller shaft with the shank, which is the only component outside the propeller shaft. If the correct amount of space is provided between the inside diameter of the propeller shaft and the shank, the balance of the propeller shafts should be in proper working condition.
The length of the shaft is often referred to as "thickness"thickness ratio". The thinner the shaft, the more powerful and efficient the propeller will be. The thickness ratio can also be referred to as the "thickness factor".
The thickness of the propeller shaft is measured in thousands of an inch. The "thickness ratio" is determined by multiplying the diameter of the propeller shaft by the ratio. The thickness of the shaft is often referred to as "Tpi".
To cut down on maintenance costs, the propeller shaft should have a maximum allowable thickness. If it is too thick, the shaft may not seat properly with the shank and cause damage to the propeller blades. A propeller shank is often a single piece.
