WHEELS: 1-15/16″ dia. prelubricated ball bearing wheel with hardened raceway. Aluminum wheel capacity is 25 lbs. per wheel; zinc-plated wheel capacity is 50 lbs. per wheel.
AXLES: 1/4″ dia. galvanized steel bolt-type axle and lock nut.
FRAMES: Formed heat-treated aluminum channel 2-1/2″ x 1″ x 1/8″; formed galvanized steel channel 2-1/2″ x 1″ x 12 ga.
COUPLINGS: Hook and rod; hooks on one end and rod (“stud”) other end.
FRAME CAPACITY: Aluminum 160 lbs. max. distributed live load per 10′ section or 750 lbs. per 5′ section; galv. steel 350 lbs. max. distributed live load per 10′ section, or 1300 lbs. per 5′ section.
RADIUS (CURVES): 4′ outside radius.