75mm Thermoplastic Casters OEM Single Bearing 3 Rubber Casters

Product Specification

75mm Thermoplastic Rubber (TPR) Gray Single Bearing Swivel Caster For Equipment

Features Analysis

• Wheel Diameter – 75mm (3″):
  A compact size that balances maneuverability with a low mounting height, making it suitable for equipment that needs to remain close to the floor while still rolling smoothly over minor irregularities.

• Material – Thermoplastic Rubber (TPR):

  • Gray Color: Often indicates a “non-marking” tread suitable for indoor use on finished floors.

  • TPR Compound: A synthetic rubber that combines the softness and grip of traditional rubber with the durability and easy molding of thermoplastics. It is softer than polyurethane but harder than some natural rubber blends.

  • Hygienic & Clean: TPR is typically non-porous, resistant to moisture, and easy to clean.

• Single Bearing (Swivel Section):
  This caster features a single ball bearing in the swivel raceway. It provides smooth rotational movement of the caster fork around the vertical axis, allowing the equipment to change direction easily. (The wheel itself may use a plain bore or a sleeve bearing, depending on the specific model—single bearing often refers to the swivel mechanism.)

• Swivel Caster Design:
  Mounted via a top plate or stem (the description does not specify, but “swivel caster” implies 360° rotation). The swivel head enables agile, multidirectional movement.

• Load Rating:
  Generally suited for light to medium duty applications (typically 50–150 kg / 110–330 lbs per caster, depending on exact construction). The single bearing design prioritizes cost‑effectiveness and adequate performance for moderate loads.

Functional Benefits

1. Excellent Floor Protection & Non‑Marking:
   The gray TPR tread is non‑marking and gentle on sensitive flooring such as hardwood, laminate, tile, polished concrete, and epoxy. It will not scuff or leave residue, making it ideal for indoor environments where floor appearance matters.

2. Quiet & Smooth Rolling:
   TPR absorbs vibrations and reduces rolling noise significantly compared to hard plastic or metal wheels. This makes it suitable for quiet settings like offices, hospitals, or retail spaces.

3. Good Traction & Shock Absorption:
   The soft tread provides grip on smooth or slightly wet surfaces, reducing the risk of slipping. It also cushions the load from minor floor imperfections, protecting both the equipment and its contents from jolts.

4. Smooth Swiveling with Single Bearing:
   The single bearing in the swivel section allows for easy, low‑effort turning of the equipment. While not as heavy‑duty as double‑bearing swivels, it offers a good balance of maneuverability and cost for light‑to‑medium duty applications.

5. Easy Cleaning & Chemical Resistance:
   TPR resists water, mild detergents, and common cleaning agents. The non‑porous surface prevents dirt from embedding, making it suitable for environments where hygiene is a priority.

6. Lightweight & Cost‑Effective:
   Compared to casters with iron cores or double‑bearing swivels, this design is lighter and more economical, reducing both initial cost and the effort required to move the equipment.

Ideal Applications

This caster is best suited for light‑to‑medium duty equipment that requires quiet, non‑marking mobility on finished floors, with a focus on indoor use.

• Medical & Healthcare Equipment

  • Lightweight medical carts (vital signs monitors, IV stands, treatment carts)

  • Medical device stands (ultrasound, portable diagnostic units)

  • Patient lifts (non‑heavy‑duty models)

• Office & Commercial Furniture

  • Mobile filing cabinets and storage units

  • Ergonomic workstations and sit‑stand desks

  • Presentation screens and display stands

• Retail & Display Fixtures

  • Clothing racks, shelving units, and kiosks

  • Point‑of‑sale (POS) carts
    – Mannequin platforms and rotating displays

• Light Industrial & Workshop

  • Portable tool stands (e.g., small bench grinders, drill presses)
    – Assembly carts for light components
    – Workbenches in maintenance or electronics shops

• Food Service & Hospitality
  – Utility carts, room service tables, and tray stands
  – Portable buffet stations (where washdown is mild, not heavy)
  – Under‑counter storage racks

• Laboratory & Clean Environments
  – Laboratory equipment carts (balances, microscopes, analyzers)
  – Cleanroom carts (non‑shedding TPR is suitable for controlled environments)