PEMS SK-1-1/4 QD Bushing 1.25" Bore Quick Detach Shaft Bushing

PEMS SK-1-1/4 QD Quick Detachable Bushing, 1-1/4" Bore

The PEMS SK-1-1/4 (PEMS Number: SK-1-1/4PD) is an industrial-grade SK series Quick Detachable (QD) bushing engineered to securely mount pulleys, sheaves, sprockets, and belt drives onto a 1-1/4 inch shaft. Featuring a precision-machined tapered outer barrel and a split construction, this flanged QD bushing delivers superior holding power, true-running concentricity, and reliable mechanical torque transmission.

Key Specifications

• Brand: PEMS 
• Class: QD (Quick Detachable) Bushing
• Prefix / Series: SK
• Bore Size: 1-1/4" (1.25 in)
• Keyway Size: Standard 1/4" x 1/8" Keyway
• Material: High-Strength Ductile Iron / Steel Construction
• Mounting Configuration: Flanged, Tapered Split Barrel with Cap Screws
• Application: V-Belt Sheaves, Industrial Pulleys, Sprockets & Drive Couplings

Product Features & Fitment

Built to standard SK series QD dimensional standards, the PEMS SK-1-1/4 features a split-taper design that contracts evenly around the 1-1/4" shaft as mounting cap screws are tightened into the mating sheave or pulley hub. Its flanged design allows for both standard and reverse mounting setups, providing exceptional versatility and easy, non-destructive removal during routine maintenance or equipment drive changes.