Full complement cylindrical roller bearings are designed for higher loads than their caged counterparts of the same size. The increased load carrying capacity of our full complement single row bearings is due to the increased number of rollers and is a compromise for the lower speed rating. Bearings of these sizes are provided with C3 internal radial clearance unless otherwise specified. They are industrially interchangeable with bearings of the same size and are used in applications such as battery sheaves, gearboxes and walking beam furnace eccentrics. Because of the ribs on both sides of the outer ring, self-retaining full complement cylindrical roller bearings have a very interesting peculiarity: the outer ring must be heated to leave enough space between the mounted rollers to Allows one roller to be inserted into the row. In addition, after cooling, the rollers must support each other with a certain small gap. Therefore, the internal geometry of the bearing as well as the accuracy of its execution are critical. On the other hand, one of the most important issues in rolling bearing design is establishing a set of internal dimensions in order to obtain the maximum value of the basic dynamic radial load rating. To achieve this goal, in this paper, the optimal design of some self-retaining cylindrical roller bearings is carried out by the PSO algorithm. In this approach, two design variables are considered, and geometric and thermal constraints are considered. Studies on the sensitivity of the design to small changes in geometric parameters are also presented. These bearings are full complement bearings with double rows of full complement cylindrical rollers on the outer ring. They can withstand large radial loads. In addition, the outer ring is guided in the axial direction by the outer ring shoulder and the end face of the cylindrical roller. Dynamic bearings are bearings with needle rollers in a thick outer ring, designed for the rotation of the outer ring. There are separable/non-separable models, double row cylindrical roller followers and others. Roller followers are widely used as follower bearings for various cam mechanisms, as well as guide rollers for linear motion of conveying equipment. Full complement cylindrical roller bearings feature solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have as many rolling elements as possible, they have an extremely high radial load carrying capacity, are highly rigid and are suitable for particularly compact designs. However, due to their motion conditions, they cannot achieve the high speeds possible with caged cylindrical roller bearings. Full complement cylindrical roller bearings are available in non-locating, semi-locating and locating bearings as well as single and double row designs.
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