Pu castor impact resistance?

The so-called castor is actually a kind of not drive, will be double or single wheel together, used to install in a larger object (below This object, we usually defined as a 'car') In order to make the mobile object (s) can be easily. In general, castor wheels to work environment is relatively flat, so that it can operate flexible. , of course, with the development of the society, to the higher requirement of the working device, the design of castor also have more special solutions, such as damping castor, v-shaped casters, and so on. General caster wheel diameter, the greater the push, the more energy saving the obstacle ability the better, because castor first western industrialization in the late 19th century, so the industrial castor castor manufacturers generally in inches, such as China's most supermarket trolley with 5 inch, 4 inch caster wheel. The same diameter of casters, general industrial castor manufacturers will produce several series for different bearing, such as light, medium, medium, etc. , method is to make the wheels and stents have different thickness or material. Calculate the load of a single caster to offer certain insurance coefficient, relatively flat on the ground, a single caster wheel load = ( Equipment had been present on the caster and quantity) ×1. 2 ( Insurance coefficient) ; If the ground not level off, the algorithm for the total weight of a single caster wheel load = equipment present 3, because no matter what kind of uneven ground, always at least three wheels support equipment at the same time, the algorithm is equal to increase the coefficient of insurance, more reliable, to prevent the bearing is not enough, lead to greatly reduce or castor life lead to accidents. In foreign company, bearing generally expressed in pounds, and most domestic use kg and their conversion relations are: 2. 2 pounds = 1 kg. / news_150。