Smilled spline apparatus and smilling process for manufacturing the smilled spline apparatus

A spline connection apparatus, comprising:

• a male spline apparatus, said male spine apparatus includes:
• a base portion, a shoulder portion and a cylindrical portion;
• said shoulder portion resides intermediate said base portion and said cylindrical portion;
• said cylindrical portion includes an external spline thereon and an upper surface, said external spline extends from said shoulder portion to said upper surface of said cylindrical portion, said external spline includes a plurality of first tooth spaces therein circumferentially spaced apart from each other forming external spline teeth between adjacent first tooth spaces, each of said first tooth spaces are formed by sides of adjacent external spline teeth and a fillet joining said adjacent external spline teeth;
• and, each of said plurality of said first tooth spaces includes a spline relief portion for tool clearance extending angularly and conically into said shoulder portion and said base portion of said male spline apparatus;
• a female collar apparatus, said female collar apparatus includes:
• a base portion and an upper portion;
• a generally cylindrically shaped hub portion having an inner circumference, said hub portion includes an internal spline therein;
• said upper portion includes an upper surface;
• said internal spline extending from said upper surface of said upper portion and terminating in a counterbore engagement surface;
• said internal spline includes a plurality of second tooth spaces therein circumferentially spaced apart from each other forming internal spline teeth between adjacent second tooth spaces, said second tooth spaces are formed by sides of adjacent internal spline teeth and a fillet joining said adjacent internal spline teeth;
• and, each of said plurality of said second tooth spaces includes an internal spline relief portion for tool clearance extending angularly and conically into said counterbore engagement surface;
• each of said plurality of external spline teeth of said external spline resides in a respective one of said plurality of said second tooth spaces of said internal spline;
• and,
• each of said plurality of internal spline teeth of said internal spline resides in a respective one of said plurality of said first tooth spaces of said external spline.

A spline connection apparatus, comprising:

• a male member, said male member includes:
• a shoulder portion and a cylindrical portion;
• xsaid cylindrical portion includes an upper surface and an external spline thereon, said external spline includes a plurality of first tooth spaces therein circumferentially spaced apart from each other forming external spline teeth between adjacent first tooth spaces, each of said plurality of said first tooth spaces includes a spline relief portion for tool clearance extending angularly into said shoulder of said male member;
• a female member, said female member includes:
• a base portion and an upper portion;
• a generally cylindrically shaped hub portion having an inner circumference, said hub portion includes an internal spline therein;
• said internal spline terminating in a counterbore engagement surface;
• said internal spline includes a plurality of second tooth spaces therein circumferentially spaced apart from each other forming internal spline teeth between adjacent second tooth spaces, said second tooth spaces are formed by sides of adjacent internal spline teeth and a fillet joining said adjacent internal spline teeth;
• and, each of said plurality of said second tooth spaces includes an internal spline relief portion for tool clearance extending angularly into said counterbore engagement surface;
• said external teeth of said external spline have a first length and said internal teeth of said internal spline have a second length, said first and second lengths are equal;
• said male and female members being coupled together, said shoulder portion of said male member engages said upper portion of said female member, said upper surface of said cylindrical portion of said male member engages said counterbore engagement surface of said female member, said external teeth of said external spline completely intermeshed with said internal teeth of said of said internal spline along said first length of said external teeth and said second length of said internal teeth such that the effective face width of said engagement is equal to the length of said of said external and internal teeth.

A spline connection apparatus, comprising:

• a male member, said male member includes:
• a shoulder portion and a cylindrical portion;
• said cylindrical portion includes an upper surface;
• said cylindrical portion of said male member extends from said shoulder portion to said upper surface;
• said cylindrical portion of said male member includes an external spline having a first length extending from said shoulder portion to said upper surface;
• a female member, said female member includes:
• a base portion and an upper portion;
• said upper portion includes a counterbore therein having an internal spline therein and said counterbore includes a counterbore engagement surface;
• said upper portion includes an upper surface;
• and, said internal spline having a second length extending from said upper surface of said upper portion and terminating in said counterbore engagement surface;
• said male and female members being coupled together, said shoulder portion of said male member engaging said upper portion of said female member, said upper surface of said cylindrical portion of said male member engaging said counterbore engagement surface of said female member, said first length of said external spline and said second length of said internal spline being equal, said external spline completely intermeshed with said internal spline, and said effective face width of said connection is equal to said first length and said second length of said splines.

A male spline connection apparatus, comprising:

• a base portion, a shoulder portion and a cylindrical portion;
• said shoulder portion resides intermediate said base portion and said cylindrical portion;
• said cylindrical portion includes an external spline thereon, said external spline includes a plurality of tooth spaces therein circumferentially spaced apart from each other forming a plurality of teeth between adjacent tooth spaces, said tooth spaces are formed by sides of adjacent teeth and a fillet joining said adjacent teeth;
• each of said plurality of said tooth spaces includes a spline relief portion for tool clearance extending angularly into said shoulder portion and said base portion of said male spline connection apparatus;
• and,
• each of said plurality of said teeth of said external spline includes involute sides.

A male spline connection apparatus, comprising:

• a base portion, a shoulder portion and a cylindrical portion;
• said shoulder portion resides intermediate said base portion and said cylindrical portion;
• said cylindrical portion includes an external spline thereon, said external spline includes a plurality of tooth spaces therein circumferentially spaced apart from each other forming a plurality of teeth between adjacent tooth spaces, said tooth spaces are formed by sides of adjacent teeth and a fillet joining said adjacent teeth;
• each of said plurality of said tooth spaces includes a spline relief portion for tool clearance extending angularly into said shoulder portion and said base portion of said male spline connection apparatus;
• and,
• each of said plurality of said teeth of said external spline includes full curve sides.