Rotary Tattoo Machine 4mm Bearing

This is a 4mm bearing designed for rotary tattoo machines that use the armature bar drive.  Also known as a cam, cam wheel, motor bearing and fly wheel.  This will fit our Hildbrandt Silencer and Beretta rotary machines.  This will also fit the Stealth and Storm rotary machines.  The size of the bearing affects the speed of the stroke and therefore a smaller bearing will result in a faster machine and a larger bearing will result in a slower machine.   The 4mm bearing is more suitable for shading.