the CUCST has a Hard Chrome bearing insert and a Stainless Steel housing
and internal gears
Keyway: No KWY or Setscrew
Click here for spec sheets: SUCX Spec Sheet
Just ask your CSR which is best for you
NF72 Cast Iron Spur Gear 1/4" ID the CUCST has a HardBoston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including