PTFE Liner ID Tolerance: How Much Clearance Does a Moving Cable Really Need?
There is no universal answer such as: “Always leave 0.2 mm clearance.” The correct clearance depends on the complete mechanical system. That includes: cable diameter; liner ID tolerance; cable tolerance; ovality; bend radius; lubricant; temperature; contaminants; assembly compression. A useful design therefore starts with a clearance window, not a nominal number. Nominal clearance is not […]
