Gear Cutting, Brunkerville Engineering, Gear Design & Transmission Failure Analysis.

This is a Fellows 6A gear shaper producing a gear from a nylon blank.
I've posted this to help people better understand the process of generating an invoulute curve.
The cutter is rotating clockwise and the blank is rotating anti clockwise.
Look on the right hand side of the blank and at the start of the video you'll notice a cutter tooth just starting to enter the job.
As the cutter and blank rotate together the involute form is gradually generated with every stroke.
The rate of rotation between the cutter and the blank determines the number of teeth to be cut.
On older machines, like this one, the ratio is set with change gears.

Brunkerville Engineering

Category:

Science & Technology

Tags:

• gear cutting
• involute
• generate
• generation
• shaping
• gear shaping
• gear manufacturing
• fellows
• fellow gear shaper
• shaper
• disc shaper
• disc shaper cutter
• brunkerville engineering
• gear design
• failure analysis
• gear failure analysis

[akcender]

is the dye spinning or the nylon

[jeetmon]

@akcender  nylon is spinning.

[guitarzan1283]

@jeetmon actually i believe both are spinning

[rolvon]

@guitarzan1283

If you read the description I have posted;

"The cutter is rotating clockwise and the blank is rotating anti clockwise."

[rolvon]

@jeetmon

If you read the description I have posted;

"The cutter is rotating clockwise and the blank is rotating anti clockwise."

[rolvon]

@akcender

If you read the description I have posted;

"The cutter is rotating clockwise and the blank is rotating anti clockwise."

[circusboy90210]

why not cnc?? does this create tighter tolerences?

[adel2385]

this is wonderfull

[MicronXD]

That is a really cool piece of machinery

[eclipsiumrasa]

I love seeing stuff like this, thanks a million!

[AlexTProduction]

Now i understand where industrial music originated

[signious]

@racebends I was wondering this too, and I am guessing the pitch circle just comes out as a factor of the cut depth and bottom land width - then you would just have to design around it (It took a little to get my head wrapped around this, but I think you would design your gear cutter so that the depth of the cut and the width of space is to the proper to your end design, and then just come out with the addendum circle that would work as if the cutting tool were the driven gear)

[vava89lli]

very nice video. I'm studing the generation of gears in Applied Mechanics and i didn't understand the process. Now it seems cleaner. Thanks.