machining a t5 pulley

hi

I am not sure this is the right forum section anyway ..

I need to machine an 80 teeth pulley. I am using gearotic to figure out the outside diameter of the blank but, after an extensive search on the web, I am still unable to figure out the correct profile of the cutter. it is possible that I am not so good finding it but ..

Yes I would like to grind myself the cutter having the means to do that.

Anyone has informations on the correct tooth profile of a t5 pulley?

many thanks

cheers

Fabio

If you google "T5 pulley tooth profile" you will have a choice of suitable information.

Also, "T5 Pulley Dimensions" or "T5 Pulley Specifications" will give more information on diameters etc.

Hi, Fabio
If you look at hpc gears and the T5 pulleys it will give you
the sizes for PCD and pulley OD .

https://www.hpcgears.com/

The calculation is for example your 80 tooth pulley is

80x 5 = 400 divided by Pi 127.33mm = PCD
127.33 - 0.83 = 126.50 mm pulley OD.

Looking here will give you the pulley tooth belt profile.

https://us.misumi-ec.com/vona2/detail/110300406820/

-------------------

An article Form relieved toothed belt cutters published
MEW 164 June 2010 shows toothed belt cutters
made using the Eureka form relieving tool which may be
of some interest.

I have recently done something similar using a ground fly
cutting tool to cut 1/5 XL pulleys the photo here
shows a 66 tooth pulley being flycut / hobbed
takes about 4 minutes to cut all the teeth.

A gear tooth caliper is a useful thing to have when grinding
these sort of profiles ,they can be had from China these days
for around £25.

John

Thank you very much, I have found what I was looking for.

I will be using a Deckel clone single lip grinder to produce the tool and I will post the results here as soon as possible.

Thanks

Fabio