Switching roller finger follower with end stops in secondary arms

A switching roller finger follower, comprising:

• a housing including first and second walls;
• a first secondary arm pivotably connected to the housing and including a first groove with first and second ends;
• a second secondary arm pivotably connected to the housing and including a second groove with third and fourth ends;
• and,
• a roller:
• disposed between the first and second walls;
• and,
• including a first axle passing through the first and second walls and having:
• a first end disposed in the first groove;
• and,
• a second end disposed in the second groove, wherein:
• the first and third ends block pivoting of the first and second secondary arms in a first direction;
• and,
• the second and fourth ends block pivoting of the first and second secondary arms in a second direction opposite the first direction.

A method of fabricating a roller finger follower, comprising:

• disposing a roller between first and second walls for a housing;
• passing a first axle through the roller and through first and second through-bores in the first and second walls, respectively;
• passing a second axle through the first and second walls;
• pivotably connecting first and second secondary arms to the second axle;
• disposing a first end of the first axle in a first groove in the first secondary arm;
• and,
• disposing a second end of the first axle in a second groove in the second secondary arm.