On the choice of castor, we already talked about a lot of things. In fact, in addition to those factors, there are some is very important, must be considered, such as the selection of the bearing. Choose to buy products of caster wheel bearing is a content must be clear. Castor use there are many kinds of bearings, without it, castor, lost value. Therefore, we suggest that the ideal bearing should be suitable for their respective applications, and keeping the necessary safety margin. Besides the rotation wheel, wheel diameter and bearing, wheel bearing determines the mobility of the casters, even that only the quality of the caster. Using the environment is very important to choose the bearing, the use of different environment have different requirements: factory with castor is different from firms with casters, tool for castor is different from a hospital bed with light-duty castor, shopping cart with the requirements of the caster must be completely different from those for carrying heavy load in the factory of the caster. Bearing some type the following: 1, cone bearing Cone bearing is one of the most important part of the roller bearing. Compared with the ordinary bearing, their special advantage to expand the use of field, can provide the moving characteristic of improvement. 2, roller bearing In addition to its wear-resisting and deep groove ball bearing, the strong seismic bearing is mainly used to transport equipment casters. Compared with other bearing, roller bearing for its low installation height, the relatively low rolling resistance and is famous for its great weight. Equipped with roller bearing wheel speed of not more than 4 km/h, close to people walking speed. 3, the precision ball bearing - - - - - - The unique design, and conform to the German industrial standards ( DIN) Single rotate precision ball bearing is a bearing of the highest quality models. With the ball bearing wheel even carrying the maximum load, remained very low rolling resistance. - 4, the ordinary bearing Wheel bearing is the most simple form of sliding bearing or friction. They can earthquake, little maintenance, and on the basis of the characteristics of materials, corrosion resistant. If the device only in the case of short distance, low speed mobile, castor 168 wheels can recommend you to install with the ordinary bearing. This is the highest cost performance. There is no best, only the most appropriate, combined with their own actual situation, several more, can find the suitable bearing products. Sure, you can choose the most suitable castor and bearing.