machining a t5 pulley

[fabio manganelliParticipant @fabiomanganelli82535]

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

[fabio manganelliParticipant @fabiomanganelli82535]

[HopperParticipant @hopper]

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.

[John PParticipant @johnp77052]

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

[fabio manganelliParticipant @fabiomanganelli82535]

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

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