MagnePots come in several shaft and bushing combinations. The 6120 series consisting of the 6121, 6124, 6126 and 6127 offer 1/8”, 6 mm, and ¼” shaft diameters with threaded bronze bushings. The 6120 series MagnePots are all rated for 10 million shaft rotations. The 6153 MagnePot features a servo mount configuration with dual precision ball bearings and an 1/8” shaft. The 6153  MagnePots can deliver an astounding 100 million shaft revolutions for those critical applications where failure is not an option.