ROLLERS:
1-3/8" dia. x 18 ga. tubing available in heat treated alum. (model 138A) or galv. steel (model 138G); both with smooth swaged ends. Roller capacity is 35 lbs. for 138A; 50 lbs. for 138G.
AXLES: 1/4" dia. galvanized steel shaft, spring loaded.
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. |
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COUPLINGS: Hook and rod; hooks on one end and rod ("stud") other end.
BEARINGS: Integral plain ball bearings, zinc plated, oiled.
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. |