4 inch travel linear stage with anti-backlash lead-screw assembly,profiled linear rails, and four (two per rail) linear bearings Motor Mount: Standard NEMA 23 LPS-4-20SPECIFICATIONS Unit Weight 3.9 lb. Moving Mass 1.312 lb. Travel Length 4.01 in. Screw Inertia 7.627E-06 lb.-in.-sec.2 Axial Moment (Mo) 180.50 in.-lb. Perpendicular Moments (Mx & My) 97.21 in.-lb. Maximum Dynamic Load 20 lb. Payload 18.688 lb. Drag Torque 3 oz.-in. Standard Lead 0.5 in./rev. Linear Speed 15 in./sec. Leadscrew Efficiency 81% Bidirectional Repeatability 0.0005 in. OPTIONAL ACCESSORIES LPS-MFT Mounting Foot LPS-xLS Dual Position Limit / Home Sensors LPS-MCH Manual Crank Handle LPS-MSH Motor Shaft Crank Handle - fits 1/4" rear motor shaft LPS-ZB Z-axis Bracket DATASHEET DOWNLOAD