taperlock angle

rutman · Feb 23, 2009

I have an 8M 385-21 SH Gates taperlock hub and bush.
I'm going to cut a new hub and was curious if anyone knows
a source for engineering drawings for such parts.
The gates site has an online drawing generator that craps out
every time I try it.
Is 1.5 degrees a reasonable taperlock angle? This is
what I calculate [approximately] from the extant hub geometry.
Thanks
Jeremy

Martin35 · Feb 23, 2009

On split taper bushing the taper is 3/4"/ft. I'm pretty sure it's the same for QD's and taper lock.

Martin

rutman · Feb 23, 2009

Thanks.
If I have the math right thats about 1.8 degrees from taper to the centerline
(or 3.6 degrees total cone angle).
Is that 3/4 inch from radius change along a foot length or from diameter change?
And is 1.8 degrees (or 3.6 degrees) some kind of standard angle?
Like 1/100 of 360 degrees maybe?

Martin35 said:
On split taper bushing the taper is 3/4"/ft. I'm pretty sure it's the same for QD's and taper lock.

Martin

johnoder · Feb 23, 2009

No, 3/4" per foot on dia is the standard, and it is 1.78991061° off C/L

John Oder

rutman · Feb 24, 2009

standard tapers in taperlocks

thanks [subatomic resolution appreciated], do u happen to know
what are the other standards; I measure about 1.5 degrees
on my taperlock [0.55mm radius change over 20.8mm travel]
which is close to 5/8" per foot, my measurement isnt
precise enough (+- 0.05mm) to tell the diff bet. that and
9/16" or 11/16" per foot so I'm hoping 5/8" is standard and
9/16 and 11/16 are not [not to speak of 32's or metric units...]
jeremy

johnoder · Feb 24, 2009

do u happen to know
what are the other standards

Here are just a few. You could also look in your copy of Machinery's Handbook.

http://www.loganact.com/tips/tapers.htm

John Oder

daredo222 · Feb 24, 2009

P.M.

Hi Rutman, you have a P.M.

ratbldr427 · Feb 25, 2009

taper bushings

Hi Rutman,go to any bearing supply house(Applied,Motion.ect.)and get a Dodge Power Train engineering manual.It has every thing known about taper hubs & bushings and more.Browning catalog and Stock Drive Products are also excellent sources.They should be free. Randy

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