Screws

Answer:  The ANSI standard for ACME screw threads provides for two classes of fit, "General Purpose (G)" and "Centralizing (C)".  The General Purpose fit provides for clearance on the major diameter and minor diameter while the screw and nut interface takes place on the thread flanks.  The Centralizing fit provides for the same flank contact [...]

Answer:  ACME screws offer several advantages over ball screws including low cost, self-locking capability, high load capacity, resistance to contamination, low noise, design versatility and smaller size. ACME screws are typically half the cost of similarly sized ball screws making them an excellent value proposition.  If your application calls for a self-locking screw, then standard ACME screws are [...]