2: Machined cage. Machined cages are an option for small cylindrical bearings, usually made of brass. The machined cage design of cylindrical roller bearings can provide better performance in harsh applications. The cage adopts one-piece or two-piece design. The one-piece design can be a finger cage shown in Figure 4 or a standard cage with fully polished pocket holes. One piece finger design and two piece window cage (Fig. 5) are more common in standard cylindrical roller bearings. They are all roller guided designs. One piece pocket design (Figure 6) is a high-quality cage for EMA series bearings. Different from the traditional cylindrical roller guide cage, it is an outer ring guide cage, which can * * minimize the drag of the rolling element, so as to reduce the calorific value and prolong the service life of the bearing. Compared with the two-piece design, this one-piece cage can also reduce heating and wear by improving the fluidity of lubricating oil.
3: Pin cage. The pin cage of cylindrical roller bearing is composed of two metal rings and a group of pins passing through the center of the rolling element. This cage is used for large diameter cylindrical roller bearings where machined brass cages cannot be used. When using this design, it is usually possible to increase the number of cylindrical rollers, so as to improve the bearing capacity.