Steel, Models 138SR and 138SRH
Frames - 2-1⁄2" deep x 1" flange x 12 gauge powder painted formed steel.
Rugged cross members bolted between channels.
Rollers - 1-3⁄8" diameter x 18 gauge galvanized steel tubing with swaged ends for a firm bearing seat.
Rollers have spring loaded axle for easy removal or insertion.
Axles - 1⁄4" diameter cold rolled steel for Model 138SR; 5⁄16" hex for Model 138SRH.
Couplings - Hook and rod.
Widths - 12", 15", 18" and 24" overall width.
Length - 5' and 10' long straight sections.
Capacity - See Frame Capacity Chart.
Aluminum, Model 138AR
Frames - 2-1⁄2" deep x 1" flange x 1⁄8" heat treated aluminum.
Rugged aluminum cross members bolted between channels.
Rollers - 1-3⁄8" diameter heat treated aluminum tubing with swaged ends for a firm bearing seat.
Rollers have spring loaded axle for easy removal or insertion.
Axles - 1⁄4" diameter cold rolled steel.
Couplings - Hook and rod.
Widths - 12", 15", 18" and 24" overall width.
Length - 5' and 10' long straight sections.
Capacity - See Frame Capacity Chart.
(For Weight Specifications and Engineering Line Drawings please see catalog pages, above).