Click here for spec sheet: NAP Spec Sheet
Entire unit is UHMW-PE
dimensions are the same (except "z" is longer
Click here for spec sheet: CSB Spec Sheet
These C-Face brakes use splined hubs and internally splined friction discs as standard equipment
NL72B Cast Iron Spur Gear 85mm ID Click here for spec sheet: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