What are mold-on rubber wheel casters used for?

Mold-on rubber wheel casters are commonly used on carts and equipment where quiet rolling, shock absorption, and floor protection are priorities.

What is the construction of a mold-on rubber wheel?

Mold-on rubber wheels use a vulcanized rubber tread bonded to a cast iron core for strength, durability, and vibration reduction.

When should I choose a larger wheel diameter?

Choose a larger wheel when crossing joints, thresholds, dock plates, or rough floors. Larger wheels typically reduce push force and improve roll-over under load.

W/ MOLD ON RUBBER WHEELS

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Mold-On Rubber Wheel Casters

QUIET • FLOOR PROTECTION • SHOCK ABSORPTION

Mold-on rubber casters use a vulcanized rubber tread bonded to a cast iron core to deliver reliable capacity with superior vibration reduction. This is a go-to wheel type for industrial carts and equipment that must roll quietly and protect floors under daily use.

Choose Wheel Diameter

4" Mold-On Rubber Wheels Compact overall height • good for smooth floors 5" Mold-On Rubber Wheels Balanced roll-over • common cart and dolly size 6" Mold-On Rubber Wheels Easier rolling under load • better over joints 8" Mold-On Rubber Wheels Maximum roll-over • heavier carts and rougher floors

Standard Performance Envelope

Mold-on rubber wheel casters with vulcanized rubber tread bonded to a cast iron core. Designed for shock absorption, noise reduction, and floor protection on carts and industrial equipment. Wheel diameters include 4, 5, 6, and 8 inches.

Wheel Construction: Rubber tread vulcanized to cast iron core
Performance Focus: Shock absorption • noise reduction • floor protection
Typical Environments: Indoor and mixed-surface use (iron core may surface rust)
Bearing Type: Commonly roller bearing with spanner bushing (model dependent)
Temperature Range: -40°F to 180°F (model dependent)
Wheel Durometer: ~80 Shore A (model dependent)

Selection tip: Choose mold-on rubber when you want quieter rolling and floor protection. If your environment is washdown/corrosive, consider wheel/core options designed for corrosion resistance.

Engineering & Application Guidance

Why engineers specify mold-on rubber

Excellent vibration and noise reduction for high-cycle carts
Rolls smoother over joints, cracks, and light debris than hard wheels
Reduced floor damage vs steel/metal wheels
Cost-effective performance for medium-duty service

Common applications

Material handling carts and dollies
Warehouse and maintenance equipment
Institutional and commercial service carts
Outdoor and mixed-surface environments (verify corrosion needs)

When to choose a larger wheel

If carts cross expansion joints, thresholds, dock plates, or rough floors, a larger wheel diameter typically reduces push force and improves roll-over. When in doubt, size up wheel diameter first.

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Floor / bumps