6"X2" Stainless Steel Top Plate Rigid Caster with Rubber (Round/Conductive) Wheel - D4.06108.559 COND SS WB29

About This Caster - D4.06108.559 COND SS WB29

Reach for this 6-inch Defender D4 rigid when a heavier cart must drain static, clear thresholds, and roll easily, pushed slowly.

The roller bearing carries the most weight of the three bearings at a slow pace, and the conductive round-tread Performa wheel carries static charge from the cart through the caster to ground, protecting electronics and reducing spark risk around 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 taller 6-inch wheel clears door tracks and joints easily, on a stainless steel frame for corrosion. Rigid means it tracks straight at the rear. It serves from -45 to 180°F.

Ideal applications

• Heavier 6-inch ESD-sensitive carts that drain static and roll easily
• Flammable or solvent areas needing low-resistance static control under load
• Quiet round-tread rear corners that clear obstacles

Verify the conductive resistance spec and full path to ground, confirm the roller load class, and check the 7-1/2-inch mount height 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 wheel? See the 6-inch grey round-tread roller rigid D4.06108.559 in the Colson collection.

Also in this family: the 6-inch conductive flat-tread roller rigid D4.06108.459 COND, or the full Colson collection.