The Lynxmotion Wrist Rotate Upgrade (Medium Duty) uses HS-225MG servo for rotation. Note that this is an UPGRADE for the AL5 series arms and includes the bracket and servo only (NOT the gripper or wrist tilt servo).
1 x HS-225MG (67 oz. in.) Mini Servo
1 x Aluminum Mini-Servo Rotate Bracket Single Pack
good unit but lyncmotion needs to improve their documentation
Probably better suited for the AL5D arm than the heavy-duty version since it's lighter
C
Churd
Very well designed product
As a teacher, I use this as an upgrade for the AL5D's in my classroom. The Lightweight Wrist rotate was too easy to strip, and the gears needed constant replacement. I just put these on 7 robots, and it will last quite a bit longer. They are heavier, so there is a little more "wiggle" with the arm, but nothing that cannot be corrected for when programming. There are so many more things you can do with a wrist rotate!