Click here for spec sheets: BUCTFB Spec Sheet
They are spring set and electro-magnetically released
Includes 2 rubber grommets to reduce vibration & noise
the SNASPA has an eccentric locking bearing insert
YK140B Cast Iron Spur Gear Set Screw Locking Click here for spec sheets:Boston 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