Bernard L3B-25 Mig Wire Liner 0.035-0.045 in 25 Ft

Product Description

The BERNARD L3B-25 is a replacement wire liner designed for MIG (GMAW) welding guns. It guides welding wire from the drive roll assembly through the gun cable to the contact tip, maintaining consistent wire feed and reducing the risk of birdnesting or erratic arc performance. The L3B-25 accommodates wire diameters from 0.035 to 0.045 inches and runs 25 feet in overall length, making it suitable for longer-reach gun setups where liner condition directly affects weld quality. MIG welders and fabrication technicians install this liner as a scheduled maintenance item or when wire feed irregularities develop.

This liner is intended for use with Bernard MIG welding guns. A 25-foot liner length suits industrial and fabrication environments where extended gun reach is required. The 0.035 to 0.045 inch wire diameter range covers common solid wire and flux-cored wire sizes used in structural, sheet metal, and general fabrication work. Replacing a worn or kinked liner restores smooth wire delivery and helps maintain stable deposition rates across a shift.

Key Features

• Wire diameter range: 0.035 to 0.045 inches (0.90 to 1.20 mm)
• Overall liner length: 25 feet
• Designed for use with Bernard MIG welding guns
• Supports consistent wire feed to reduce birdnesting and arc instability
• Direct OEM-style replacement for scheduled gun maintenance

Compatibility

Designed for use with Bernard MIG welding guns. Verify gun model and liner seat dimensions before installation to confirm fitment.

Installation Notes

Liner replacement is performed by qualified welders or maintenance technicians familiar with MIG gun assembly. Before servicing the gun, disconnect the welder from its power source and release any wire tension at the drive rolls. The old liner should be fully removed before the new liner is inserted to avoid feed restrictions. Follow the gun manufacturer's instructions for trimming the liner to final length at the diffuser end.