Ball Screws CAD Configurator 1. Select Ball Screws series SelectCompact FA SeriesFSS Series - Low Cost Ball ScrewsRNCT Series 2. Select size SelectScrew shaft Ø10 - Lead 5, 10Screw shaft Ø12 - Lead 5, 10, 20, 30Screw shaft Ø15 - Lead 5, 10Screw shaft Ø20 - Lead 5, 10, 20, 30, 40, 60Screw shaft Ø25 - Lead 5, 10, 20, 25, 30, 50Screw shaft Ø15 - Lead 20, 30 2. Select size SelectScrew shaft Ø12 - Lead 10Screw shaft Ø15 - Lead 10, 20Screw shaft Ø25 - Lead 10, 20, 25Screw shaft Ø20 - Lead 10, 20 2. Select lead SelectRNCT - Rolled Ball Screw Nut with fine or medium leadRNFBL - Rolled Ball Screw Nut with a fine or medium leadRNFCL - Rolled Ball Screw Nut with a high helix leadRNFCL - Rolled Ball Screw Nut with an ultra-high helix leadRNFTL - Rolled Ball Screw Nut with a fine- or medium leadRNFTL - Rolled Ball Screw Nut with a high helix leadRNSTL - Rolled Ball Screw Nut with a fine- or medium lead 3. Configure your Ball Screws