JR Clancy Sliding Tension Floor Blocks

• Used with manual fire curtains to provide proper tension in the hand line
• 12″ (305 mm) diameter ASTM Class 30 grey iron sheave with machined groove for 3/4″ (19 mm) or 1″ (25 mm) rope
• Tapered roller bearings
• Sheave “floats” on two 3/4″ (19 mm) diameter rods
• Three-year warranty against defects in materials or workmanship is provided on all J.R. Clancy equipment, additional warranty information is available at jrclancy.com