Straight Bevel Gear Vs Spiral Bevel Gear

Straight Bevel Gear Vs Spiral Bevel Gear

Straight Bevel Gear at Rs 500 /unit | स्ट्रैट बेवल ...Spiral bevel gear - Wikipedia

Straight Bevel GearSpiral Bevel Gear
Teeth of this type of gear are straight and are cut along the axis on a cone.Here the teeth are spiral and are cut in the form of spiral curve on the pitch cone.
Two teeth of the mating gears come in sudden contact. The contact is always a line of length equals to face width of teeth.Teeth of two mating gears gradually come in contact. Engagement starts with a point and gradually becomes a line.
Due to sudden contact, teeth are also subjected to impact or shock loading.Here teeth are subjected to gradual loading.
Sudden contact also causes noise.Its operation is quite.
Shock loading induces vibration and thus its operation is not smooth.Due to gradual building up of load, it produces less vibration and thus the operation is smooth.
Designing and manufacturing of straight teeth bevel gear are easier and thus these are cheaper.Complicated design and manufacturing leads to higher cost for this type of gear.
It exerts less thrust force on the bearings that hold the shafts.It exerts more thrust force on bearings.

Comments

Post a Comment

Popular posts from this blog

Centrifugal Pump

Image
Centrifugal Pump "Centrifugal pump  is a hydraulic machine which converts mechanical energy into hydraulic energy (i.e. pressure energy) by the use of centrifugal force acting on the fluid. " A centrifugal pump is the simplest machine which is used in various industries as well as in many daily applications to transfer fluid from lower head to higher head.  Centrifugal pumps are mostly used in chemical industries for easily transfer viscous fluids.   Also, it is less expensive than other pumping devices. In short, it is an excellent machine with efficient working in variety of applications. History of Centrifugal Pump- 1475- Italian engineer Francesco di Giorgio Martini designated mud lifting machine as a centrifugal pump. 1687- Denis Papin developed the first true  centrifugal pump  which was one with straight vanes that was used for drainage.  1851- John Appold, who was a British inventor, developed the first curved vane  centrifugal pump
Read more

Vapour Compression Refrigeration System

Image
Vapour Compression Refrigeration System Vapour-compression refrigeration  or  vapor-compression refrigeration system  ( VCRS )  in which the  refrigerant  undergoes  phase changes , is one of the many  refrigeration cycles  and is the most widely used method for  air-conditioning  of buildings and automobiles. Vapor-compression uses a circulating liquid  refrigerant  as the medium which absorbs and removes heat from the space to be cooled and subsequently rejects that heat elsewhere. History:- 1805- The American inventor  Oliver Evans  described a closed vapor-compression refrigeration cycle for the production of ice by ether under vacuum. 1834-   American Great Britain,  Jacob Perkins , built the first working vapor-compression refrigeration system in the world. 1842-  American physician,  John Gorrie  who built a working prototype, but it was a commercial failure. 1850- American engineer  Alexander Twining  took out a British patent for a vapor compress
Read more

TURBOFAN ENGINE

Image
TURBOFAN ENGINE The turbofan engine is a combination of the turbo prop and the turbojet engines combining the advantages of both. The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the turbo portion refers to a gas turbine engine which achieves mechanical energy from combustion, and the fan, a ducted fan that uses the mechanical energy from the gas turbine to accelerate air rearwards. Thus, whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of that air bypasses these components.  In the 1950s, Rolls-Royce introduced the first turbofan in the world, namely, RB.80 Conway. Classification 1. According to Fan Location (a) Forward Fan Turbofan Engine (b) AFT Fan Turbofan Engine 2. According to Spools (a) Single Spool Turbofan Engine (b) Double Spool Turbofan Engine (c) Triple Spool Turb
Read more