3 inch 75mm Diameter Anti-static TPR swivel Caster Wheel With Double Ball Bearing For Special Industrial Equipment

Feature and Functional Purpose

• Features:
  • Material (TPR): Thermoplastic Rubber (TPR) offers the elasticity of rubber with the durability of plastic. It is non-marking and will not leave scuffs or black marks on floor surfaces.
  • Anti-static Properties: The wheel is engineered to dissipate static electricity buildup. It has a specific electrical resistance (typically ranging from 106106 to 109109 Ohms) that allows static charges to flow safely from the equipment to the floor.
  • Double Ball Bearing: The swivel head (raceway) contains two rows of hardened steel balls. This design distributes the load more evenly than single-row bearings.
  • Diameter (75mm/3"): This size provides a balance between load capacity and maneuverability, rolling easily over slight debris or floor joints.
• Functional Purpose:
  The primary purpose of this caster is to support industrial equipment that is sensitive to electrostatic discharge (ESD). It allows the equipment to be moved smoothly and quietly while ensuring that any static electricity generated by movement or the environment is safely grounded, preventing damage to electronic components or ignition of flammable substances.

Summary of Functional Benefits

• ESD Safety: Protects sensitive electronics and reduces the risk of sparks in hazardous environments by channeling static electricity away from the equipment.
• Floor Protection: The TPR material is gentle on expensive industrial floors (epoxy, vinyl, sealed concrete) and will not leave marks.
• Smooth Maneuverability: The double ball bearing swivel ensures the wheel turns easily under heavy loads, reducing the physical effort required to push or pull the equipment. It provides superior resistance to "shimmy" (vibration) compared to single raceway casters.
• Quiet Operation: TPR is a quieter material than polyurethane or nylon, reducing overall facility noise.
• Durability: TPR offers good resistance to abrasion, water, and many chemicals, ensuring a long service life in industrial settings.

Ideal Applications

These casters are specifically designed for environments where ESD control is critical:

1. Electronics Manufacturing Assembly Lines: For carts carrying circuit boards, semiconductors, or finished devices.
2. Cleanrooms: Often used in conjunction with anti-static flooring in labs and medical device manufacturing.
3. Aerospace and Defense: For equipment stands and tool trolleys used around sensitive avionics.
4. Data Centers: For heavy server racks and maintenance carts that need to be moved without risking static discharge to hard drives and servers.
5. Automotive Repair Shops: Specifically in areas handling flammable fuels or airbag systems where a static spark could be dangerous.