5397279 : High speed, radial ball, traction transmission

ABSTRACT:   The invention, an improved radial ball, traction transmission capable of bearing component speeds in excess of 20,000 RPM, connecting the output shaft of a motor or power source to the output shaft of the transmission for the purpose of transferring input torque by RPM reduction or augmentation through the incorporation of a commercially manufactured, standard ball bearing assembly in two basic configurations where: The inner race is driven by the input power source and the output shaft is being driven by the movement of the rotating balls with the outer race secured in a fixed but adjustable position. An adjustable bearing support ring is incorporated that allows the ball bearing and it's elements to be centered, balanced and adjusted to critical clearances, or, where the inner race is driven by the input power source and the output shaft is driven by the outer race with the ball separator cages secured in a fixed but adjustable position allowing the ball separator cages and rotating elements to be centered, balanced and adjusted to critical clearances necessary for high input speeds. Also incorporated, is a threaded, rear motor support housing that permits variable and precision pressure control upon the ball bearing assembly while the invention is operating at peak RPM, permitting a non-slip start yet still maintaining a more precise torque limiting capability.

U.S. REFERENCES:   

Patent	Inventor	Issued	Title
1399442 *	Rennerfelt	12 /1921
2528470 *	Elder	10 /1950
3144789 *	Ladin	8 /1964
5236403	Schievelbusch	8 /1993	Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio
* some details unavailable

EXEMPLARY CLAIM(s):Show all 2 claims

What is claimed is:
    1. An improved, high speed, radial ball, traction transmission for the purpose of RPM reduction or augmentation comprising,

• a standard ball bearing assembly including inner and outer races, balls and ball separator disposed between said races, the outer race fixed within a spirally movable, threaded support ring and having an output shaft driven by the ball separator in an associative assemblage with said balls,
• a cylindrical, internally threaded, fixed housing, wherein the threaded support ring, ball bearing and output shaft is spirally disposed, said shaft extending through the open end of said housing,
• a rotary power source having a rotating, shaft driven spline and spring washer in an associative assemblage, disposed within a cylindrical, externally threaded housing with said housing being spirally coupled to said fixed, internally threaded housing, the driven spline sliding through, engaging, and pressing said spring washer against the rear face of said inner race, thus imparting an axial load upon said ball bearing assembly,
• wherein the increased angular contact between the races and balls to a lesser or greater degree, affects the revolution of the balls, ball separator and the output shaft, said spring washer maintaining traction pressure, and at the same time functioning as a torque limiter.

• a standard ball bearing assembly including inner and outer races, balls and ball separator disposed between said races, having the output shaft driven by the outer race in an associative assemblage, disposed within a cylindrical, internally threaded, fixed housing, with said shaft rotatably supported and extending through the open end of said housing,
• a moveable, threaded security ring, said ball separator, attached to said threaded security ring in an associative assemblage with the balls, is spirally disposed within said internally threaded housing,
• a power source having a rotating, shaft driven spline and spring washer in an associative assemblage, disposed within a cylindrical, externally threaded housing with said housing being spirally coupled to the said fixed, internally threaded housing, the driven spline, sliding through, engaging and pressing upon the rear face of the inner race, thus imparting an axial load upon said ball bearing assemblage,
• wherein the increased angular contact between the races and balls to a lesser or greater degree, affects the revolution of the balls, outer race and output shaft, said spring washer maintaining traction pressure and at the same time functioning as a torque limiter.

RELATED U.S. APPLICATIONS: none
FOREIGN APPLICATION PRIORITY DATA: none

FOREIGN REFERENCES:

Document No.	Country	Date	Intl. Class
1016809	France	11 /1952
55-940052	Japan	7 /1980
908929	United Kingdom	10 /1962
1229484	Union of Soviet Socialist Republics	5 /1986

OTHER REFERENCES: none
AGENTS:none

PRIMARY/ASSISTANT EXAMINERS:

Herrmann; Allan D.;

____________________________________

MTech Gearless Reduction Motor Page Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8

M.C.Cotter Productions Home Page
____________________________________