Abstract: A control device having an elongated shaft, a C-shaped magnet, and an anti-rotation pin. The magnet and the anti-rotation pin are encapsulated in a spherical member. The C-shaped magnet has opposing ends defining an open slot along the C-shaped main body. The anti-rotation pin extends through the slot and connects to the shaft.

Abstract: A method of manufacturing a speed ring in a continuous process using a magnetizing fixture and a trimming fixture. An unmagnetized magnetic strip is fed into the trolley of a magnetizing fixture, clamped stretched, and magnetized by a coil. The newly magnetized strip is then cut and fed into a trimming fixture. As the magnetized strip goes through the trimming fixture, it runs over a hall effect sensor which determines where a center of a pair of poles is located. Based on where a pair of poles is located the cutting blade of the trimming fixture is activated and a magnetic strip that can be turned into a speed ring is created.