such bearings, cost-effective outer diameter of 15020030040020Domestic YRT cross roller slewing bearings, such bearings (cost-effective to high), the outer diameter of 150200300400, about how much? As a manipulator, the joint has seen a single volleyball, four point contact, I do not know how this quality, cross roller and double volleyball is more durable than that?
You said the main bearing depends on your specific conditions, the use of requirements, the accuracy of different prices will have a big gap. For your case, I think first of all to consider your stress situation, speed, accuracy and other specific indicators, and then decide which type of specific use. As long as the selection is right, the quality will not be a problem. The main reason for the poor use of many bearings is that of the wrong type of bearings.
2., "cross roller" and "double Volleyball" does not exist any durable argument, according to the equipment load and performance to select the correct type of use, in order to save costs and increase service life,
1., from the outside diameter can not determine the price, because the cross roller is also divided into several kinds, there are internal teeth, external teeth, toothless, as well as three rows of cross, so the price gap is very large,
