A CF12 cam follower is a type of roller bearing that is used in cam applications. The "CF" stands for "cam follower" and the "12" refers to the size of the bearing. The CF12 cam follower has a caged roller arrangement, which means that the rollers are held in place by a cage. This type of bearing is typically used in applications where there is a high degree of vibration or shock, as the cage helps to protect the rollers from damage.
A KR19 cam follower is a specific type and model of cam follower bearing. Cam followers are used in various mechanical systems to transmit motion between different parts. They typically consist of a stud or shaft, a rolling element (such as a needle roller or ball), and a housing.
Eccentric cam followers, also known as eccentric track rollers or eccentric stud-type cam followers, are a specific type of cam follower bearing designed with an eccentric collar or stud. These cam followers are used to transmit motion in mechanical systems where the follower's position needs to be adjusted or changed along the cam profile.