Spur and Helical gear terminology ( Animation ) | Mechanical Engineering hub
Spur and helical gear terminology Animation video | Mechanical Engineering hub
Difference between helical and spur gear
Difference between spur gear and double helical spring
The is nothing much difference between spur and helical gear the only difference is that the teeths on spur gear are not inclined and in helical gear the is some inclination for tooths of helical gear that inclination angle is called as helical angle
The terminologies used in gears are
pitch circle
pitch circle diameter
pitch point
pitch surface
pressure angle
helix angle
addendum
dedendum
addendum circle
dedendum circle
circular pitch
diametrical pitch
module
clearance
tooth depth
tooth thinkness
working depth
tooth thickness
tooth space
backlash
face of the tool
top land
flank of the tool
face width
profile
fillet radius
path of contact
length of contact
Arc of contact
Arc of approach
Arc of recess
Hence these are the terminologies you need to know as a gear design engineer. every design engineer or product Engineer when he/ she design some product where gears are used these terminologies will help them to design safe
they need to solve helical gear problems
sour gear problems, bevel gear problems
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There are few helical gear terminologies are show in this video for better understanding
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