The C4T live center features a proprietary bearing isolator seal designed exclusively for the company by Inpro/Seal. The center is said to have at least three times the service life of standard centers, and the non-contacting, frictionless seal will not wear out under normal use, the company says.
Normal use includes demanding service with high-horsepower lathes and grinders, and applications involving extreme coolant pressures. In all applications, the center has accuracy of ±0.00005" TIR.
The bearing isolator seal is a compound mechanical labyrinth with dual flow paths: The inner section retains and recirculates the bearing lubricant, while the outer path captures outside contamination and expels it through a port.
Editor PickCan't Cut it if you Can't Hold it
Read an article we published that speaks to the changes that many shops are experiencing when dealing with the trend toward low volume/high mix jobs and the increasing need for precision workholding.