ROLLERS: 1.9" x 16 ga. steel tubing,model 196S,with smooth swaged ends.

FRAMES: Formed steel painted channel 3-1/2" x 1-1/2" x 10 ga. set high; 4-1/2" x 1-1/2" x 10 ga. set low.

BEARINGS: Integral plain ball bearings,zinc plated, grease packed.

FRAME CAPACITY: 250 lbs. per roller,or 1300 lbs. maximum distributed live load per10' section with supports at 10' centers;3200 lbs. at 5' centers.

COUPLINGS: Butt type.

AXLES: 7/16" hex shaft, spring loaded.

OPTIONAL FRAME: 4" @ 5.4 lbs. struc. steel channel frame, rollers 3/16" high, may vary due to structural tolerances.