|ROLLERS: 2-9/16" x 7 ga. steel tubing, model 297S, with straight ends, reamed to provide smooth bearing seats.
ROLLER CAPACITY: 540 lbs. per roller.
AXLES: 11/16" hex shaft, spring loaded.
BEARINGS: Removable type, heavy duty ball bearings, zinc plated, grease packed.
||FRAMES: 4" at 5.4 lbs. structural steel painted channel.
COUPLINGS: Butt type.
FRAME CAPACITY: 3750 lbs. maximum distributed live load per 10' section with supports at 10' centers; 8000 lbs. at