Martin SD 1-1/4 QD Taper-Lock Bushing, Bore 1-1/4"

Martin SD 1‑1/4 is a QD taper‑lock bushing designed to securely mount sprockets, sheaves, and pulleys onto shafts while allowing easy installation and removal in industrial power transmission systems. Manufacturer: Martin Sprocket & Gear, Inc. Manufacturer part number: SD 1‑1/4 Product type: QD taper‑lock bushing Bushing series: SD Bushing style: Quick Detachable (QD) Bore diameter: 1‑1/4 inch (1.25 in / 31.75 mm) Bore type: Finished bore Taper type: QD taper Material: High‑strength cast iron Flange outside diameter: 3.1875 inches (80.96 mm) Length through bore (LTB): 1.8125 inches (46.04 mm) Overall length: Approx. 2.44 inches Keyway: Standard ANSI keyway for 1‑1/4 in bore Set screw: Included Mounting method: Taper‑lock with cap screws Cap screws: Included Torque transmission: High torque capacity via taper fit Removal feature: Jack‑out holes for easy dismounting Compatibility: SD‑series QD sprockets, sheaves, and pulleys Operating application: Industrial power transmission Typical uses: Conveyors, fans, pumps, gear drives Interchange standard: ANSI power transmission standards Condition: New Manufacturing country: United States of America