Rotor bearing being hand clearanced on the lathe.
Rotor being clearanced for high rpm operation with a vertical mill, a rotary table, and a cup grinder.
Apex seal being clearanced on Sunnen tool hone machine. This machine is designed for sharpening cuttters, but its diamond wheel, and adjustable guide make it ideal for setting end clearance on apex seals.
This picture shows the rotating assembly being balanced on a Sunnen computerized balancer.
Once the rotors and seals have been balanced, and clearanced, all the seals are assembled on to the rotor with a healthy dose of assembly lube.