7490 - Bernard Style 7490 .045 Elliptical Contact Tip

Precision Performance with the 7490 Elliptical Contact Tip

For welders who demand consistency and ease of use, the 7490 Bernard Style Contact Tip is a proven performer. This consumable is part of the renowned 7400 Elliptical Series, designed to address common frustrations associated with MIG welding contact tips. Specifically sized for .045" (1.2mm) wire, it provides the critical electrical transfer point needed for stable arcs and clean welds. The internal bore tolerance is strictly controlled to ensure good electrical contact while minimizing friction that can lead to bird-nesting or erratic feeding.

The standout feature of this tip is its elliptical, threadless design. Traditional threaded tips often fuse to the diffuser or gas holder after prolonged exposure to high heat and spatter, making removal difficult and often damaging the torch head. The 7490 simply drops into the gas diffuser (compatible with part numbers 4335 and 4435) and is locked in place by the nozzle. This "drop-in" functionality means you can swap out a tip in seconds, even with gloved hands. Furthermore, the elliptical shape creates a larger surface area for heat dissipation and electrical contact with the diffuser, keeping the tip cooler during high-amperage welds (up to 600A).

Another technical advantage is the ability to rotate the tip. As the wire feeds through, it tends to wear a groove into the contact tip bore, eventually causing the arc to wander. With the 7490, you can simply remove the nozzle, rotate the tip 90 degrees to a fresh surface, and lock it back down. This simple feature can significantly extend the service life of each tip, reducing your overall consumable costs. Whether you are welding mild steel, stainless, or aluminum, this contact tip provides the reliability required for professional results.

• Threadless Installation: Eliminates seized threads and speeds up maintenance.
• Rotatable Design: Double the life of your tip by rotating to a fresh wear surface.
• High Conductivity: Ensures efficient current transfer for stable arc starts.
• System Compatibility: Fits Bernard Q-Gun, S-Gun, and EZ Feed platforms.