Dictionary.com
Thesaurus.com

constant-velocity joint

American  
[kon-stuhnt vuh-los-i-tee] / ˈkɒn stənt vəˈlɒs ɪ ti /
Or constant velocity joint

noun

Automotive.
  1. a universal joint that is used in the drive train of front-wheel-drive cars and operates effectively even when the shafts being connected meet at a sharp angle.