SAE Straight Sided Spline Info

Jeff S.

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Jan 23, 2002, 12:59:33 PM1/23/02

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I am looking for information on SAE straight sided splines (not
involute splines). Specifically, I need dimension and tolerancing
information for the male side of a 1-1/4-6B spline. Machinery’s
Handbook only shows information for the female half of the spline
(soft broached holes).

Thanks,

Jeff S.

(who is aware that SAE is willing to gouge me for $50 (that is for
members, which I am), for this information)

Doug Milliken

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Jan 23, 2002, 1:19:11 PM1/23/02

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Get the SAE Handbook volume from your local library (maybe through
inter-library loan?)

Brian Whatcott

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Jan 23, 2002, 9:28:15 PM1/23/02

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J499A last revision 1975
It is only the female side that is specified. You choose the fit on
inner, outer diams or lands!!!
6 spline 1.25 D= 1.249-1.250 w=0.311-0.313
6b slides when off load: d=1.062-1.063
allowable torque at 1000 psi side pressure on lands t=325 in-lb per
inch length of bearing, where
d minor diam D major diam h = female land height = (D-d)/2
w= female groove width

Brian Whatcott
Altus, OK
Eureka!

Brian Whatcott

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Jan 23, 2002, 9:29:47 PM1/23/02

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Used books sources on Internet - about $15 to $20 if 15 years old+
(This stuff ages slowly)

Brian W

Brian Whatcott
Altus, OK
Eureka!

Jeff S.

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Jan 24, 2002, 10:06:03 AM1/24/02

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>
> J499A last revision 1975
> It is only the female side that is specified. You choose the fit on
> inner, outer diams or lands!!!
> 6 spline 1.25 D= 1.249-1.250 w=0.311-0.313
> 6b slides when off load: d=1.062-1.063
> allowable torque at 1000 psi side pressure on lands t=325 in-lb per
> inch length of bearing, where
> d minor diam D major diam h = female land height = (D-d)/2
> w= female groove width
>
>
> Brian Whatcott
> Altus, OK
> Eureka!

Thanks for looking that up, Brian. I appreciate it. That is what I
found in Machinery's.

But don't you find it odd that it gives detail dimensions for the
female portion for "permanent fit", "to slide-no load", and "to slide
under load" with no details as to the dimensions for the male
component to which it mates to achieve these fits? I know of no other
fit design system that does this. Look at square shaft fits, taper
shaft fits, etc. many of which use the same fit terminology. Puzzling

Jeff S.

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Jan 25, 2002, 10:28:40 AM1/25/02

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jj...@juno.com (Jeff S.) wrote in message news:<77770412.02012...@posting.google.com>...

Additionally, I have a hard time believing that GM, Ford, Chrysler,
Allis Chalmers, International-Harvester, etc. all had/have their own
in-house method of defining the male member. If so, are there any
retired engineers out there who can help?

Jeff S.

Ardent

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Jan 30, 2002, 9:40:19 PM1/30/02

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On 25 Jan 2002 07:28:40 -0800, jj...@juno.com (Jeff S.) wrote:

>Additionally, I have a hard time believing that GM, Ford, Chrysler,
>Allis Chalmers, International-Harvester, etc. all had/have their own
>in-house method of defining the male member. If so, are there any
>retired engineers out there who can help?

Once I did a lot of work for a Propeller Shaft manufacturing company
and they had complete specs for the male shaft - they did follow the
SAE std.

That Co is no more and unfortunately I did not keep copies of the
standards.

How does it help you ? You can ask someone in the Prop shaft
manufacturing business.

(I will look in the attic for old papers and if I get hold of
something I will post again)

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