8"x 2" Stainless Steel Top Plate Swivel Caster with Performa Rubber (Round/Conductive) Wheel - D4.08109.559 COND SS WB29

About This Caster - D4.08109.559 COND SS WB29

Reach for this 8-inch Defender D4 swivel when a heavier cart must steer, drain static, and ride over the roughest floors, moved slowly.

The swivel head steers the front of the cart, with a 6.375-inch swivel radius to allow, while the roller bearing gives that swivel the highest capacity of the three bearings at a slow pace. The conductive round-tread Performa wheel carries static charge from the cart down through the caster to ground, protecting electronics and reducing spark risk near solvents or dust. Its round profile keeps rolling resistance low and the soft rubber rolls quietly, though the conductive compound can mark a light surface. The tallest 8-inch wheel clears the widest cracks and big obstacles, on a stainless steel frame for corrosion. It serves from -45 to 180°F.

Ideal applications

• Heavier 8-inch ESD-sensitive carts that steer and drain static on rough floors
• Flammable or solvent bays needing static control under load
• Round-tread front corners that clear the biggest obstacles slowly

Verify the conductive resistance spec and that the wheel and swivel both carry the path to ground, confirm the roller load class, before ordering.

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

Wrong fit? No static concern, just a quiet non-marking swivel? See the 8-inch grey round-tread roller swivel D4.08109.559 in the Colson collection.

Also in this family: the 8-inch conductive round-tread precision-ball swivel D4.08109.555 COND, or the full Colson collection.