4″ Black Polyurethane on Vintage Cast Iron Black Center – Wheel Only

Description

Want this wheel with a black metal caster bracket?  Check out of Vintage Casters.

4″ Black polyurethane on vintage-style cast iron center wheels represent an ideal combination of classical design and modern engineering, offering superior performance while maintaining authentic period aesthetics. The black-painted cast iron center features traditional spoke patterns reminiscent of early industrial wheels, with a 1/2″ plain bore that can accommodate a spanner bushing for 3/8″ axle applications. The 1-1/2″ hub width provides excellent stability, while 95A Durometer Black Polyurethane tread compound ensures exceptional floor protection, noise reduction, and optimal rolling resistance. These wheels deliver reliable load distribution through their cast iron spoke design, while the specifically formulated black polyurethane offers resistance to wear, marking, oils, and most commonly encountered chemicals.

The specialized black-on-black finish creates a cohesive appearance that enhances traditional furniture and architectural elements while providing contemporary functionality. Available in both 4-inch and 5-inch diameters with a refined 1.25-inch tread width, these wheels feature a versatile plain bore design that accommodates both 1/2″ axles directly or 3/8″ axles with the included spanner bushing. The cast iron construction provides authentic period weight and durability, while the polyurethane tread maintains its performance characteristics across a wide temperature range and resists flat-spotting. These wheels are ideal for both mobile and stationary applications in luxury residential, hospitality, and historical preservation settings where authentic period appearance must be combined with modern performance standards.

A spanner bushing adapts a larger wheel bore to a smaller axle diameter by providing a precision-machined sleeve that maintains proper fit and alignment while evenly distributing the load across the bearing surface.  For example, our optional steel spanner bushing with dimensions of 3/8″ inner diameter x 1/2″ outer diameter x 1-1/2″ length allows wheels with 1/2″ bores to be mounted securely on 3/8″ axles while maintaining full contact across the entire hub width.

Photo Shown with 5″ Black Polyurethane On Vintage Cast Iron Black Center

Application Use for Rubber Wheels:

• Institutional Settings
  • Healthcare
    • Patient beds
    • Stretchers
    • Wheelchairs
    • Medical carts (medication, crash, linen)
    • IV poles
    • Surgical tables
    • Laundry carts
    • Food service carts
    • Diagnostic equipment carts (e.g., ultrasound, X-ray)
    • Anesthesia machines
    • Patient lift devices
    • Hospital bed storage racks
    • Waste disposal carts
    • Mobile monitors (e.g., vital signs monitors)
  • Education
    • Classroom chairs
    • Classroom desks
    • Cafeteria tables
    • Library carts (book, media)
    • Audio-visual carts (projectors, screens)
    • Janitorial carts
    • Mobile whiteboards
    • Science lab carts
    • Teacher podiums
    • Storage cabinets
    • Gym equipment carts
    • Art supply carts
    • Music stands
    • Instrument storage racks
  • Offices
    • • Office chairs
      • Filing cabinets
      • Mobile workstations
      • Conference tables
      • Storage cabinets
      • Printer stands
      • Mailroom carts
      • Reception desks (mobile)
      • Mobile partitions
      • Coffee stations