1. Scope--This Information Report along with SAE J500 and J501 isgenerally understood to be technically obsolete for the design of newapplications. However, it is listed for those existing applicationswhere it may be required. For the design of new applications, consultANSI B92.1-1970--Involute Splines and Inspections Standard.

[The dimensions, given in inches, apply only to soft broached holes.The shaft dimensions depend upon the shape and material of the parts,their heat treatment, and methods of machining to give the requiredfit. The method and amount of "breaking" sharp corners and edges alsodepend upon the conditions and requirements of each application.

The formula for theoretical torque capacity (pressure on sides ofspline) in inch-pounds per inch of bearing length (L) and at 1000 psipressure is:

T = Torque = 1000 × No. of spines × mean radius × h× L (Eq. 1)

The tolerances allowed are for good construction and may be readilymaintained by usual broaching methods. The tolerances selected for thelarge and small diameters will depend upon whether the fit between themating parts, as finally made, is on the large or the small diameter.The other diameter, being designed for clearance may have a widermanufacturing tolerance. If the final fit between the parts is on onlythe sides of the spline, wider tolerances may be permitted on both thelarge and small diameters.]

Radii on corners of splines are not to exceed 0.015 in.

Splines shall not be more than 0.006 in per ft out of parallel withrespect to the axis of the shaft.

No allowance is made for radii on corners or for clearance. Dimensionsare intended to apply to only the soft broached hole. Allowance must bemade for machining.

For values of D, W, d, h, and T for four-, six-, ten-, andsixteen-spline fittings, Table 2, Table 3, Table 4 and Table 5,respectively.