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Black rubber Centerfire insulator with cylindrical shape

Bernard

Bernard Q1515AB8BM Centerfire Insulator 4423R

SKU CH-BRXF-ZF44G MPN Q1515AB8BM

Rubber centerfire insulator fits Bernard Q-series welding guns including 1515, 2015, 3015, 4015, 4025 and 5015 models

  • Size/DimensionsH=.89,W=1.10,D=.89
  • MaterialRubber
  • TypeCenterfire
  • Compatible with Bernard Centerfire series torches including 1515, 2015, 3015, 4015, 4025 and 5015 models
  • Rubber material insulates the contact tip for reliable welding operation
  • Compact dimensions of H=0.89, W=1.10, D=0.89 fit tight torch assemblies
  • Black rubber finish resists heat and spatter during extended use
  • Replacement insulator for Centerfire HD and Large Centerfire nozzle series

Centerfire Welding Insulator

This Bernard insulator is a rubber component designed for Centerfire welding gun assemblies. It fits the Q1515AB8BM model and compatible series including BTB, Q2015, Q3015, Q4015, Q4025 and Q5015 variants. The part serves as a direct replacement for the 4423R insulator in compatible setups. It is supplied new in black rubber.

Fitment for Specific Gun Series

The insulator suits welders maintaining Bernard Centerfire guns across the listed model families. It matches the Centerfire HD and Large Centerfire nozzle series requirements. Shops or operators using other gun brands or non-Centerfire Bernard series should verify compatibility before ordering. This part does not fit guns outside the specified model list.

Critical Dimension and Material

The insulator measures H=.89, W=1.10, D=.89 and is made from rubber. These exact dimensions and material determine whether the part seats correctly in your gun assembly. Confirm these figures against your equipment specifications before purchase.

Highlights

  • Compatible with Bernard Centerfire series torches including 1515, 2015, 3015, 4015, 4025 and 5015 models
  • Rubber material insulates the contact tip for reliable welding operation
  • Compact dimensions of H=0.89, W=1.10, D=0.89 fit tight torch assemblies
  • Black rubber finish resists heat and spatter during extended use
  • Replacement insulator for Centerfire HD and Large Centerfire nozzle series

Specifications

BrandBernard
Size/DimensionsH=.89,W=1.10,D=.89
MaterialRubber
TypeCenterfire

Questions about this item

What are the dimensions of the Bernard 4423R insulator?

The insulator measures 0.89 in height, 1.10 in width, and 0.89 in depth.

How is the Centerfire insulator installed on a Bernard welding gun?

It press-fits into the nozzle assembly; the common mistake is not seating it fully flush before tightening the nozzle.

When should the rubber insulator be replaced on a Bernard Centerfire gun?

Replace it when the rubber shows cracking, melting, or deformation from heat exposure during welding.

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