Universal casters caster wheel is a kind of activity, its structure characteristics include the slide direction and rolling two aspects. In the field of modern business, universal wheel ( Universal casters) The application is very extensive. You walk into any of a large department stores, supermarkets, can be seen everywhere universal wheel ( Universal casters) In the figure. In large supermarkets, for example, consumers go to the supermarket shopping often pushes a cart. Four slippage is universal support under a cart wheel, universal wheel ( Universal casters) Can achieve horizontal slide any direction, the characteristics of great too convenient transport, shopping consumers can easily slide push cart at the mall. Below we to further analyze the universal wheel structure, through careful observation will find: twist, support structure, wheel bearings, such as center of rivet several parts. The wheels of the roller is a separate. Structure including the wheel and axle, nut, screw, insert rod. Implement rotating wheel direction key institutions, usually there will be a shaft sleeve, outside rotation bearing also has a number of different models, single bearing, double bearings, and double row ball bearings, choose according to the need of practical application. Center of the rivet is also a key components, bolt is used for the fixed rotating device, through tight or loose put center rivet can control universal wheel ( Universal casters) The direction of flexibility. Universal casters, also known as castor or universal casters, different from traditional castor wheels of the simple structure, universal wheel wheels can level the rotation Angle, so have the planar motion function. Universal wheel ( Universal casters) At the beginning of the invention of the quality level is very low, often very fragile, strength is not enough. So the former universal wheel failure rate is very high, the service life of the common under a year. With the constant improvement of the modern industrial manufacturing technology, however, universal wheel manufacturing technology constantly breakthroughs, today's universal wheel have fairly good firmness and strength, and also has the function of suspension, is equipped with electronic devices, even realize the instrument electronic control equipment. Of course, even if the universal wheel ( Universal casters) Manufacturing technology and development, the service life is longer, and will eventually malfunction or damage of the process of actual use. Once use problems, we need to master certain maintenance method, here are two: one, overhaul universal wheel driving to see casters, caster wheel drive directly reflect the overall quality. Castor of driving if there is a sound, there may be a joint have larger friction, there is a vibration bearing appeared problem, resistance of hic, shows may have foreign body of winding between shaft lever. 2, check the universal wheel surface wear of wheel, the tyre wear degree can reflect the environment of the use place, such as whether the ground has a sharp material or wire cord, etc. , necessary for universal wheel ( Universal casters) Bearing sleeve.