Ideal for wet or corrosive environmentsresist most chemicals, solvents, water, and acids. Tread is mechanically bonded to a gray core with roller bearings. Zinc-plated finish with zerk grease fittings. 4" x 4-1/2" top plate with slotted 3" x 3" to 3-5/8" x 2-5/8" bolt holes. Swivel models have a double ball raceway. IN STOCK. PERFORMA (RG). Rubber polyolefin core with gray round tread wheel. HI-TECH (HT-PU). Polyolefin core with polyurethane tread.
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