What features characterize "Rzeppa" CV joints?

Rzeppa CV joints are well-known for their distinctive design that features six steel balls. This configuration allows for greater articulation and flexibility, making them particularly effective for handling the angular movements required in front-wheel drive (FWD) vehicles. The six-ball design offers an increased contact area compared to joints with fewer balls, which enhances power transfer and reduces wear and tear on the components.

This design feature enables Rzeppa joints to accommodate the changes in axle length as the suspension moves, providing smooth and reliable performance in various driving conditions. The use of six steel balls not only supports the necessary flexibility but also contributes to the overall durability and efficiency of the joint.

In contrast, the other options do not accurately describe Rzeppa joints; for instance, containing only two balls would limit their functionality, and stating they are only used for inner joints does not represent their common applications, as they are frequently used for both inner and outer joints in FWD systems. Additionally, while various components in automotive applications may be made from plastic, Rzeppa joints specifically are not characterized by plastic components, emphasizing that their construction involves metal elements for strength and performance.