How to reduce the resistance of polyurethane casters

How to reduce the resistance of the polyurethane casters? Hardware mainly include: blank casting, stamping manufacturing, machinery processing, processing link contains a list of the casting, forging, heat treatment, raw materials division, wire bending, vehicles, milling, planing, grinding, or sheet metal forming process. There are many different kinds of hardware products and different specifications. The current material market of hardware products a total of more than 10 kind of hundreds of products. Including: locks, handles, door hardware, the family decorates hardware, plumbing hardware, architectural hardware, tools, bathroom hardware, kitchen hardware, and so on. High quality wheels, industrial casters, caster wheel, rubber casters, cast iron caster wheel rotates, the roof every ball should be able to and steel runway surface contact, rotation smooth, no obvious resistance phenomenon. Castor wheels in turns, should be flexible rotation, no obvious jumping up and down. Axis core, the dragon king, and metal shaft in rolling wear small, low noise. Ordinary castor with the axis of the core shaft is metal, promote wear big and noisy. Even in the road not only slight vibration at ordinary times, avoid the common stretcher push violent vibration, noise from 40 db reduced to below 20 db. Ward was treated with the car, car, flexible and convenient medical records when the car driving son almost couldn't hear the noise, the medical staff and patients get the praise. Formal castor plant is to use carton or pallet to the packing and shipping of castor, marked with obvious marks ( Including the product name castor, manufacturer address, telephone number, etc. ) , effectively prevent the castor for damage in transit. And small factory because there is no form or mass production in order to save costs, often using woven bag packaging, can't ensure that castor products are not damaged during the transit. / news_79。