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the propeller shaft in the after peak tank is provided with inboard and outboard seals.these seals contain nitrile rubber or viton lip seal which seals against the bronze liner shrunk fit around the cast iron propeller shaft.after a few years it creates grooves on them and naturally looses sealing and sea water can easily find its way inside.this reduces the lubrication effect and creates wear if the bronze liner.now as there is enough clearance the shaft will come down by certain amount because of the propeller weight.this drop in propeller shaft is termed as propeller drop and is measured by POKERS gauge.
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What is tail shaft?
Tail Shaft is the section after the propeller shaft of a shift. Any shaft is always placed farthest from the head, where the power is applied.
Is the propeller shaft the same as the stern tube shaft?
The propeller shaft in a boat engine is fastened to the flywheel by bolts, and it passes through the boat's thrust block and is aligned with the shaft tunnel. It also passes through the stern tube to drive the propeller. The stern tube shaft itself holds the "prop" shaft in place and shut off the open end when it pierces the aft hull. It is commonly manufactured as cast iron and welded into the frame of the stern of the ship.
How do you you make a rubber band powered boat?
A rubber band boat works much like a rubber band airplane. First you need to build the boat itself. Then you need to make a propeller. The propeller shaft needs to run through the inside of the boat, not below the boat. With the prop below the water. The propeller shaft should not go the full length of the boat. About halfway through put a loop in the shaft. Then to the front of the boat attach a rubber band. Then run the rubber band through the loop in propeller shaft. Now twist the prop and the rubber band should twist around and around. When it's good and tight let go and the propeller should spin. Allowing the boat to move forward in the water. Mind you the shaft needs to be a thin piece of metal, as it will be difficult to make it water tight.
Where would a lead screw be found?
Sometimes the propeller on a boat is called a screw & they used to be made of lead. So they would be found at the end of the propeller shaft.
What is the function of the propeller?
The propellers purpose is to pull (or push) the aircraft forward through the air. It does this in much the same way that the airplanes wing produces lift, only instead of being pushed forward through the air, it is spun in circles through the air.Most modern airplanes have a variable-pitch (fixed speed) propeller. The pilot is able to adjust the pitch (or bite) of the propeller to maximize performance at various altitudes.A propeller is a type of fan that converts rotational motion into thrust by transmitting power. The shape and angle of the blade create pressure.
How to calculate the propeller shaft bearing clearance after measuring the propeller shaft drop of a ship?
Loser loner major wannabee
What is propeller shaft?
The spinning shaft from the engine to which the propeller is attached.
Why propeller shaft of a vechile is made hollow?
why propeller shaft are made hollow
What is propeler drop?
the propeller shaft in the after peak tank is provided with inboard and outboard seals.these seals contain nitrile rubber or viton lip seal which seals against the bronze liner shrunk fit around the cast iron propeller shaft.after a few years it creates grooves on them and naturally looses sealing and sea water can easily find its way inside.this reduces the lubrication effect and creates wear if the bronze liner.now as there is enough clearance the shaft will come down by certain amount because of the propeller weight.this drop in propeller shaft is termed as propeller drop and is measured by POKERS gauge.
Why propeller shaft hollow.why we not use solid propeller shaft in vehicles?
Weight savings.
What materials used to make propeller?
automobile propeller shaft material
What is another name for a driveshaft?
driving shaft, propeller shaft, Cardan shaft
How do you measure the propeller shaft drop of a marine vessel?
Before taking the measurement, we have to remove the rope guard first.Also to make sure weather the vessel have the poker gauge or not.This poker gauge is use to measure the propeller shaft drop (known as propeller wear down). After dismantling the rope guard, make sure to turn the blade to one position refer to the marking.Normally, we take top measurement and bottom measurement.
Why the propeller shaft is inclined?
important reason behind inclining the shaft is to avoid/reduce various vibrations that may come up from the propeller and shaft rotation. various rulebooks have the minimum clearances for hull/propeller, so when the hull and propeller are designed and the minimum clearances are not satisfied shaft are inclined. other reasons include better positioning of engine bearers, better flow angle to the propeller blades
Why is propeller shaft inclined?
important reason behind inclining the shaft is to avoid/reduce various vibrations that may come up from the propeller and shaft rotation. various rulebooks have the minimum clearances for hull/propeller, so when the hull and propeller are designed and the minimum clearances are not satisfied shaft are inclined. other reasons include better positioning of engine bearers, better flow angle to the propeller blades
Are thrust loads at a right angle to a shaft?
On a ships propeller shaft, the thrust will be in line with the axis of the shaft.
Why cone pin is used in propeller?
The cone pin, or shear pin, is used to attach the propeller to the drive shaft so that if you hit something hard with the propeller, you only break the shear pin, and not the expensive drive shaft, motor, or propeller.Or, more specifically, that you only break the shear pin and propeller, not the drive shaft or motor.
