4" Stainless Steel Top Plate Rigid Caster with Performa Rubber (Flat/Conductive) Wheel - D4.04108.455 COND SS

About This Caster - D4.04108.455 COND SS

Choose this 4-inch Defender D4 rigid when a cart has to bleed off static electricity in an ESD-sensitive or flammable area.

The wheel is Colson Performa rubber in a conductive flat tread, loaded to carry static charge from the cart through the caster instead of letting it build up, which protects electronics on the deck and reduces spark risk around solvents or fine dust. The flat profile gives a stable footprint, and the soft rubber rolls quietly while staying easy on floors, though the conductive compound can leave a mark on a light finished surface. The stainless steel frame suits wash-down areas, and the pedestal precision ball bearing keeps it rolling smoothly. Soft rubber holds the load class modest, so this is a static-control caster first. Rigid means it tracks straight. It serves from -45 to 180°F.

Ideal applications

• ESD-sensitive electronics carts that must drain static charge
• Flammable or solvent areas where spark risk needs reducing
• Quiet stable flat-tread corners that track straight under modest loads

Verify the conductive resistance spec and that the full caster path to ground is conductive, plus the 5-5/8-inch mount height, before ordering.

Pairs with: matching conductive Defender D4 casters across all four corners so the whole cart stays grounded, from the Colson collection.

Wrong fit? No static concern, just a quiet non-marking wheel? See the grey flat-tread rigid 49MC42G-02 in the Colson collection.

Also in this family: the round-tread Performa precision-ball rigid 49M1G42G-02, or the full Colson collection.