||Grade 5 black zinc in most applications.
||Premium-quality upholstery with Beautyguard protective topcoat finish. Fabric meets or exceeds California fire regulations (Bulletin 117, section E). Double-layer slipcover in appropriate high wear areas. Double stitching on all seams.
||2-inch 8-lb high-density foam.
||Wherever possible, redirection pulleys are used to route cables close to frame to minimize chance of external interference.
||Slip-resistant rubber sleeve with machined alloy end-cap.
||On most selectorized units, the weight stack is elevated 5 inches to facilitate user pin selection from seated position.
||Each selector plate entirely precision machined on all surfaces. Top plate has replaceable Igus precision self-lubricating bushings. Black painted protective finish.
|Pivot Points and Joints
||Pillow block or flange-mount motor-grade rotary bearings or sleeve bearings utilizing either oil-impregnated bronze bushings or pre-lubricated Igus nylon bushings.
|Bearings and Pivot Points
||Oversized linear reticulating ball bearings are self-aligning, sealed and running on casehardened shafts.
|Pulleys and Cables
||Glass-fiber-reinforced nylon pulleys with precision motor-grade ball bearings.
3/16-inch (7x19) aircraft cable coated with black pressure-extruded nylon to 1/4 inch or 1/8 inch coated to 3/16 inch. The cable will conform to specification MIL-W-83420D-BARE cable only. Attachments are climbing-rated carabiner design.
|Frame and Finish
||11 gauge (.120"") and 7 gauge (.188"") 2x4-inch bent electroweld steel tubing. Minimum of 3 standard bolt tabs on appropriate units. Electrostatically applied, heat-cured powder coat.
||Guide rods are precision centerless ground, polished, with corrosion-resistant plating for smooth operation and retardation of rust.
||Hardened plunger and snap-pin assembly with easy-grip pull-pin and ""slide"" insert for easy movement of adjustment.