Altra Industrial Motion Formsprag Clutch&Reg; CL42189-2UPC: 786582313843 | UNSPSC: 26111910 | GTIN:Clutches & Brakes > Mechanical Clutches & Brakes > Mechanical ClutchesFormsprag Clutch® Sprag Clutch, High Performance, Series: HPI-400, 3/4 in Bore, 3-1/2 in OD, 2-3/4 in Overall Length, 300 ft-lb Torque, 2800 rpm Inner/850 rpm Outer Race Maximum, Vertical (Zero-U) Mounting