Item 1339
OTHER: Mechanical ~
Joint - Constant Velocity (homo-kinetic joint)
CONSTANT VELOCITY (CV) JOINT:
A Constant Velocity Joint is one that provides consistent driveshaft speeds regardless of the operating angle of the joint. CV joints are used primarily in on the driveshafts of front-wheel drive vehicles, and they come in two basic varieties: the Rzeppa ball type joints (which you'll find on the outer end of the driveshaft) and tripod joints (which are used on the inner end).
Also, look at [spherical spring].
Web Pages:
http://www.autospeed.co.nz/A_0241/page1.htmlTorvec, Inc.
http://www.mscsoftware.com/support/library/conf/adams/na/2000/09_Delphi_rzeppa_joint.pdf
A clear and simple description of CV Joints;-
http://www.mscsoftware.com/support/library/conf/adams/na/2000/40_Dana_double_offset_cv_joint.pdf1973 Established NTN Bearing Mfg. (Canada) Ltd.
(Merged into NTN Bearing Corp. Of Canada Ltd. in 1980).
Constructed constant velocity joint factory in Toyo Bearing Iwata Co. Ltd.
1996/97 Golf III GTI 16V Technical Specifications (Europe & Asia)
DRIVE TRAIN - FRONT WHEEL DRIVE
5 Speed Manual with Double Constant Velocity Joint Drive Shafts
A type of CV joint invented and introduced in 1926 by Alfred H. Rzeppa. It uses six balls, and an inner and outer race to provide constant velocity torque transfer regardless of the joint angle. The joint works something like a bevel gear with the balls bisecting the joint angle and functioning as the "teeth" to transmit torque.
TRIPOD JOINTS:
The other type of CV joint you'll see is the "tripod" style joint. Tripod joints do not have balls but instead use needle bearing rollers mounted on a three-legged spider. The rollers are mounted at 120 degrees to one another and slide back and forth in tracks in an outer "tulip" housing.
Tripod style joints are used for the inner joints on most domestic and Asian FWD models from 1983 to present. This type of joint is less expensive to manufacture than a ball type joint, and is well-suited to the limited operating angles of the inner joint location. The joint is designed to plunge in and out the same as other inboard joints to allow changes in shaft length as the suspension moves.
A fixed version of the tripod joint is used on a few applications including the former AMC Alliance and some Asian applications (Toyota Tercel and Nissan Sentra).
______________________________________
Information about the different types of CV Joints etc:
http://hostingprod.com/@aa1car.com/library/cvjoint1.htmServicing CV Joint:
http://www.partsplus.com/shared/Marketing/CVJoints.pdf___________________________________
Source:
Dana Corporation
Bendix Joint: (type of CVJ)
A mid-30s ripoff of the Rzeppa. It used four large balls, with a smaller centering ball. Used first in the 1937 front drive Cord auto. Later used in Jeeps and other 4x4s into the 1950s. Though a true CV, it had even more limited angularity than the five-ball Rzeppa. The Spicer joint had only slightly less articulation (27.5 degrees) than the Rzeppa (29 degrees) and much more than the Bendix (23 degrees).
Information and pictures of CV Joint:
http://vernco.com/id374.htmPictures of CV Joint:
http://www.personal.psu.edu/staff/d/a/dad1/1948Toy/07142002/
General Information on Joints at this Site:
Perhaps Outside Relevant Information:
Introduction Page | SynchroLite Home Page | UniCopter Home Page | Nemesis Home Page
Last Revised: February 29, 2008