Magnaloy Coupling's full range of flexible inserts permit custom design performance for a wide range of applications. All insert materials offer complete electrical insulation, as Magnaloy's design eliminates all metal-to-metal contact between hubs. Magnaloy's insert design will accept misalignment strain and, when excessive, will cause insert wear as a visual and audible indication of misalignment problems. However, Magnaloy's inserts are inexpensive and easily replaced; under normal conditions the insert seldom requires replacement.

Neoprene (Code N) - Black material - Standard insert with Magnaloy Coupling. Good general purpose material offering good resiliency and load capabilities. Temp Range -30°F to +250°F. Optional 80A durometer (painted Gold) and 90A durometer (painted Silver) are available for slight increase in load capacity and less resiliency.

Nitrile (Buna N)(Code B) - Painted blue - Excellent material with petroleum products. Excellent compression set and abrasion resistance characteristics. Temp range -60°F to +250°F.

Urethane (Code U) - Yellow Material - Excellent mechanical and physical properties. Offers good medium duty and resiliency. Urethane tends to soften in higher temperatures and swells in humid conditions. Temp range -30°F to +150°F.

Viton ™ (Fluorocarbon)(Code V) - Red Material - Excellent fluid compatibility and high temperature characteristics. Good compression set and resiliency. Temp range -20°F to +350°F.

Hytrel ™ (Code H) - Blue-green material - Superior physical and mechanical properties and excellent fluid compatibility and high temperature characteristics. Hardness (50D) approaches that of plastic and offers little resiliency. Excellent performance under heavy duty conditions. Temp range -65°F to +300°F.