SKF Y-bearings for high temperatures correspond in design to the appropriate Y-bearings in the YAR 2-2FW series with grub screws.
The characteristic features of these bearings for extreme temperatures include large radial internal clearance and special cages and shields. As for the high-temperature deep groove ball bearings all surfaces of the Y-bearings are manganese phosphated. This provides protection against corrosion and improves running properties.
SKF Y-bearings for high as well as low temperatures are available in two different designs.
Y-bearings of the VA201 and VA228 designs
Y-bearings of the VA201 (fig 1) and the VA228 (fig 2) designs have the same features as the deep groove ball bearing designs having the same V-number identification, with the exception of the bearing clearance, which is only twice the C5 clearance. The Y-bearings are fitted with pressed steel shields and flingers on both sides, which protect the bearings from solid contaminants.