CasterHQ's 'LD' Series swivel casters with 5 inch Phenolic wheels feature a heat treated ball bearing raceway and a bright zinc plated finish. These casters are ideal for light and medium duty material handling, carts, equipment, and shop projects. Phenolic wheels have a high resistance to impact damage while providing protection for floors in commercial and industrial settings. These easy rolling wheels are quieter than comparable steel wheels. Phenolic resin wheels feature a resistance to water, oil, and grease. Being non-metallic, these resin wheels are also spark proof. Top plate size: 2-1/2" x 3-5/8" with ball bearing swivel. Bolt hole pattern: 1-3/4" x 2-7/8" to 3". Mounting Height: 4-1/8" 350 lb capacity per caster. Features PRICED FOR OEM & HIGH-VOLUME USAGE WHEEL IS STRONG AS STEEL & IMPACT RESISTANT CORROSION & CHEMICAL RESISTANT 3/8" AXLE & NUT ZINC PLATED CASTER MASSIVE INVENTORY